diff --git a/cloudresourcemanager/v1/cloudresourcemanager-gen.go b/cloudresourcemanager/v1/cloudresourcemanager-gen.go
index e21b76c..71d6358 100644
--- a/cloudresourcemanager/v1/cloudresourcemanager-gen.go
+++ b/cloudresourcemanager/v1/cloudresourcemanager-gen.go
@@ -66,9 +66,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Operations *OperationsService
 
@@ -84,6 +85,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewOperationsService(s *Service) *OperationsService {
 	rs := &OperationsService{s: s}
 	return rs
@@ -1293,6 +1298,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1434,6 +1440,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1569,6 +1576,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.getiampolicyrequest)
 	if err != nil {
@@ -1709,6 +1717,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.searchorganizationsrequest)
 	if err != nil {
@@ -1857,6 +1866,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.setiampolicyrequest)
 	if err != nil {
@@ -1995,6 +2005,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.testiampermissionsrequest)
 	if err != nil {
@@ -2141,6 +2152,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.project)
 	if err != nil {
@@ -2286,6 +2298,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/projects/{projectId}")
@@ -2424,6 +2437,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2559,6 +2573,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.getancestryrequest)
 	if err != nil {
@@ -2696,6 +2711,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.getiampolicyrequest)
 	if err != nil {
@@ -2890,6 +2906,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3099,6 +3116,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.setiampolicyrequest)
 	if err != nil {
@@ -3234,6 +3252,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.testiampermissionsrequest)
 	if err != nil {
@@ -3377,6 +3396,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.undeleteprojectrequest)
 	if err != nil {
@@ -3515,6 +3535,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.project)
 	if err != nil {
diff --git a/dfareporting/v2.7/dfareporting-gen.go b/dfareporting/v2.7/dfareporting-gen.go
index 089b16b..98d495d 100644
--- a/dfareporting/v2.7/dfareporting-gen.go
+++ b/dfareporting/v2.7/dfareporting-gen.go
@@ -127,9 +127,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	AccountActiveAdSummaries *AccountActiveAdSummariesService
 
@@ -259,6 +260,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewAccountActiveAdSummariesService(s *Service) *AccountActiveAdSummariesService {
 	rs := &AccountActiveAdSummariesService{s: s}
 	return rs
@@ -13749,6 +13754,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -13898,6 +13904,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -14045,6 +14052,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -14186,6 +14194,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -14333,6 +14342,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -14473,6 +14483,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -14611,6 +14622,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.accountuserprofile)
 	if err != nil {
@@ -14837,6 +14849,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -15055,6 +15068,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.accountuserprofile)
 	if err != nil {
@@ -15197,6 +15211,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.accountuserprofile)
 	if err != nil {
@@ -15342,6 +15357,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -15558,6 +15574,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -15764,6 +15781,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.account)
 	if err != nil {
@@ -15906,6 +15924,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.account)
 	if err != nil {
@@ -16051,6 +16070,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -16189,6 +16209,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.ad)
 	if err != nil {
@@ -16566,6 +16587,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -16896,6 +16918,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.ad)
 	if err != nil {
@@ -17038,6 +17061,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.ad)
 	if err != nil {
@@ -17172,6 +17196,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/advertiserGroups/{id}")
@@ -17290,6 +17315,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -17428,6 +17454,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.advertisergroup)
 	if err != nil {
@@ -17633,6 +17660,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -17834,6 +17862,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.advertisergroup)
 	if err != nil {
@@ -17976,6 +18005,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.advertisergroup)
 	if err != nil {
@@ -18121,6 +18151,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -18259,6 +18290,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.advertiser)
 	if err != nil {
@@ -18519,6 +18551,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -18763,6 +18796,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.advertiser)
 	if err != nil {
@@ -18905,6 +18939,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.advertiser)
 	if err != nil {
@@ -19048,6 +19083,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -19181,6 +19217,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.campaigncreativeassociation)
 	if err != nil {
@@ -19361,6 +19398,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -19557,6 +19595,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -19697,6 +19736,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.campaign)
 	if err != nil {
@@ -19980,6 +20020,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -20224,6 +20265,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.campaign)
 	if err != nil {
@@ -20366,6 +20408,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.campaign)
 	if err != nil {
@@ -20511,6 +20554,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -20813,6 +20857,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -21189,6 +21234,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -21355,6 +21401,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -21502,6 +21549,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -21631,6 +21679,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/contentCategories/{id}")
@@ -21749,6 +21798,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -21887,6 +21937,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.contentcategory)
 	if err != nil {
@@ -22092,6 +22143,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -22293,6 +22345,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.contentcategory)
 	if err != nil {
@@ -22435,6 +22488,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.contentcategory)
 	if err != nil {
@@ -22569,6 +22623,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.conversionsbatchinsertrequest)
 	if err != nil {
@@ -22714,6 +22769,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -22861,6 +22917,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -23045,6 +23102,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativeassetmetadata)
 	if err != nil {
@@ -23255,6 +23313,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/creativeFields/{creativeFieldId}/creativeFieldValues/{id}")
@@ -23384,6 +23443,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -23533,6 +23593,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativefieldvalue)
 	if err != nil {
@@ -23743,6 +23804,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -23955,6 +24017,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativefieldvalue)
 	if err != nil {
@@ -24108,6 +24171,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativefieldvalue)
 	if err != nil {
@@ -24251,6 +24315,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/creativeFields/{id}")
@@ -24369,6 +24434,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -24507,6 +24573,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativefield)
 	if err != nil {
@@ -24723,6 +24790,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -24931,6 +24999,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativefield)
 	if err != nil {
@@ -25073,6 +25142,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativefield)
 	if err != nil {
@@ -25218,6 +25288,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -25356,6 +25427,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativegroup)
 	if err != nil {
@@ -25579,6 +25651,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -25793,6 +25866,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativegroup)
 	if err != nil {
@@ -25935,6 +26009,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creativegroup)
 	if err != nil {
@@ -26080,6 +26155,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -26218,6 +26294,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creative)
 	if err != nil {
@@ -26535,6 +26612,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -26850,6 +26928,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creative)
 	if err != nil {
@@ -26992,6 +27071,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.creative)
 	if err != nil {
@@ -27141,6 +27221,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.dimensionvaluerequest)
 	if err != nil {
@@ -27320,6 +27401,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -27542,6 +27624,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -27760,6 +27843,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -27898,6 +27982,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.directorysite)
 	if err != nil {
@@ -28156,6 +28241,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -28394,6 +28480,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/dynamicTargetingKeys/{objectId}")
@@ -28531,6 +28618,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.dynamictargetingkey)
 	if err != nil {
@@ -28708,6 +28796,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -28872,6 +28961,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/eventTags/{id}")
@@ -28990,6 +29080,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -29128,6 +29219,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.eventtag)
 	if err != nil {
@@ -29379,6 +29471,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -29592,6 +29685,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.eventtag)
 	if err != nil {
@@ -29734,6 +29828,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.eventtag)
 	if err != nil {
@@ -29879,6 +29974,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -30091,6 +30187,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -30298,6 +30395,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/floodlightActivities/{id}")
@@ -30411,6 +30509,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/floodlightActivities/generatetag")
@@ -30555,6 +30654,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -30693,6 +30793,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightactivity)
 	if err != nil {
@@ -30964,6 +31065,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -31212,6 +31314,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightactivity)
 	if err != nil {
@@ -31354,6 +31457,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightactivity)
 	if err != nil {
@@ -31499,6 +31603,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -31637,6 +31742,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightactivitygroup)
 	if err != nil {
@@ -31873,6 +31979,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -32100,6 +32207,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightactivitygroup)
 	if err != nil {
@@ -32242,6 +32350,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightactivitygroup)
 	if err != nil {
@@ -32387,6 +32496,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -32547,6 +32657,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -32686,6 +32797,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightconfiguration)
 	if err != nil {
@@ -32828,6 +32940,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.floodlightconfiguration)
 	if err != nil {
@@ -32975,6 +33088,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -33221,6 +33335,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -33458,6 +33573,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/campaigns/{campaignId}/landingPages/{id}")
@@ -33587,6 +33703,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -33736,6 +33853,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.landingpage)
 	if err != nil {
@@ -33890,6 +34008,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -34032,6 +34151,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.landingpage)
 	if err != nil {
@@ -34185,6 +34305,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.landingpage)
 	if err != nil {
@@ -34337,6 +34458,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -34475,6 +34597,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -34615,6 +34738,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -34762,6 +34886,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -34902,6 +35027,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -35049,6 +35175,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -35190,6 +35317,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -35337,6 +35465,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -35479,6 +35608,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -35728,6 +35858,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -35968,6 +36099,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -36197,6 +36329,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -36423,6 +36556,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -36561,6 +36695,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placementgroup)
 	if err != nil {
@@ -36906,6 +37041,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -37209,6 +37345,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placementgroup)
 	if err != nil {
@@ -37351,6 +37488,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placementgroup)
 	if err != nil {
@@ -37485,6 +37623,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/placementStrategies/{id}")
@@ -37603,6 +37742,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -37741,6 +37881,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placementstrategy)
 	if err != nil {
@@ -37946,6 +38087,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -38147,6 +38289,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placementstrategy)
 	if err != nil {
@@ -38289,6 +38432,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placementstrategy)
 	if err != nil {
@@ -38466,6 +38610,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/placements/generatetags")
@@ -38662,6 +38807,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -38800,6 +38946,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placement)
 	if err != nil {
@@ -39180,6 +39327,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -39517,6 +39665,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placement)
 	if err != nil {
@@ -39659,6 +39808,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.placement)
 	if err != nil {
@@ -39804,6 +39954,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -39951,6 +40102,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -40091,6 +40243,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -40237,6 +40390,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -40377,6 +40531,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -40596,6 +40751,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -40811,6 +40967,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -40951,6 +41108,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -41091,6 +41249,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.remarketinglistshare)
 	if err != nil {
@@ -41233,6 +41392,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.remarketinglistshare)
 	if err != nil {
@@ -41378,6 +41538,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -41516,6 +41677,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.remarketinglist)
 	if err != nil {
@@ -41725,6 +41887,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -41938,6 +42101,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.remarketinglist)
 	if err != nil {
@@ -42080,6 +42244,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.remarketinglist)
 	if err != nil {
@@ -42214,6 +42379,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/reports/{reportId}")
@@ -42332,6 +42498,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -42470,6 +42637,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.report)
 	if err != nil {
@@ -42661,6 +42829,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -42870,6 +43039,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.report)
 	if err != nil {
@@ -43020,6 +43190,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/reports/{reportId}/run")
@@ -43162,6 +43333,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.report)
 	if err != nil {
@@ -43307,6 +43479,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.report)
 	if err != nil {
@@ -43454,6 +43627,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -43665,6 +43839,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -43876,6 +44051,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -44014,6 +44190,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.site)
 	if err != nil {
@@ -44291,6 +44468,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -44542,6 +44720,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.site)
 	if err != nil {
@@ -44684,6 +44863,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.site)
 	if err != nil {
@@ -44829,6 +45009,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -44967,6 +45148,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.size)
 	if err != nil {
@@ -45142,6 +45324,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -45306,6 +45489,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -45444,6 +45628,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.subaccount)
 	if err != nil {
@@ -45648,6 +45833,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -45849,6 +46035,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.subaccount)
 	if err != nil {
@@ -45991,6 +46178,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.subaccount)
 	if err != nil {
@@ -46136,6 +46324,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -46341,6 +46530,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -46558,6 +46748,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -46696,6 +46887,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.targetingtemplate)
 	if err != nil {
@@ -46907,6 +47099,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -47114,6 +47307,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.targetingtemplate)
 	if err != nil {
@@ -47256,6 +47450,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.targetingtemplate)
 	if err != nil {
@@ -47399,6 +47594,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -47536,6 +47732,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -47662,6 +47859,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -47809,6 +48007,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -47950,6 +48149,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -48108,6 +48308,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -48244,6 +48445,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "userprofiles/{profileId}/userRoles/{id}")
@@ -48362,6 +48564,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -48500,6 +48703,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.userrole)
 	if err != nil {
@@ -48719,6 +48923,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -48931,6 +49136,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.userrole)
 	if err != nil {
@@ -49073,6 +49279,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.userrole)
 	if err != nil {
@@ -49218,6 +49425,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -49365,6 +49573,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/gensupport/header.go b/gensupport/header.go
new file mode 100644
index 0000000..cb5e67c
--- /dev/null
+++ b/gensupport/header.go
@@ -0,0 +1,22 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gensupport
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+)
+
+// GoogleClientHeader returns the value to use for the x-goog-api-client
+// header, which is used internally by Google.
+func GoogleClientHeader(generatorVersion, clientElement string) string {
+	elts := []string{"gl-go/" + strings.Replace(runtime.Version(), " ", "_", -1)}
+	if clientElement != "" {
+		elts = append(elts, clientElement)
+	}
+	elts = append(elts, fmt.Sprintf("gdcl/%s", generatorVersion))
+	return strings.Join(elts, " ")
+}
diff --git a/gensupport/header_test.go b/gensupport/header_test.go
new file mode 100644
index 0000000..8fdb863
--- /dev/null
+++ b/gensupport/header_test.go
@@ -0,0 +1,28 @@
+// Copyright 2017 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+package gensupport
+
+import (
+	"fmt"
+	"runtime"
+	"strings"
+	"testing"
+)
+
+func TestGoogleClientHeader(t *testing.T) {
+	const genVersion = "20170101"
+	gv := strings.Replace(runtime.Version(), " ", "_", -1)
+	got := GoogleClientHeader(genVersion, "gccl/xyz")
+	want := fmt.Sprintf("gl-go/%s gccl/xyz gdcl/%s", gv, genVersion)
+	if got != want {
+		t.Errorf("got %q, want %q", got, want)
+	}
+
+	got = GoogleClientHeader(genVersion, "")
+	want = fmt.Sprintf("gl-go/%s gdcl/%s", gv, genVersion)
+	if got != want {
+		t.Errorf("got %q, want %q", got, want)
+	}
+}
diff --git a/google-api-go-generator/gen.go b/google-api-go-generator/gen.go
index 94f73c0..5d695c5 100644
--- a/google-api-go-generator/gen.go
+++ b/google-api-go-generator/gen.go
@@ -27,7 +27,10 @@
 	"google.golang.org/api/google-api-go-generator/internal/disco"
 )
 
-const googleDiscoveryURL = "https://www.googleapis.com/discovery/v1/apis"
+const (
+	googleDiscoveryURL = "https://www.googleapis.com/discovery/v1/apis"
+	generatorVersion   = "20170210"
+)
 
 var (
 	apiToGenerate = flag.String("api", "*", "The API ID to generate, like 'tasks:v1'. A value of '*' means all.")
@@ -590,6 +593,7 @@
 	pn(" client *http.Client")
 	pn(" BasePath string // API endpoint base URL")
 	pn(" UserAgent string // optional additional User-Agent fragment")
+	pn(" GoogleClientHeaderElement string // client header fragment, for Google use only")
 
 	for _, res := range a.doc.Resources {
 		pn("\n\t%s\t*%s", resourceGoField(res), resourceGoType(res))
@@ -599,6 +603,9 @@
 	pn(` if s.UserAgent == "" { return googleapi.UserAgent }`)
 	pn(` return googleapi.UserAgent + " " + s.UserAgent`)
 	pn("}\n")
+	pn("\nfunc (s *%s) clientHeader() string {", service)
+	pn("  return gensupport.GoogleClientHeader(%q, s.GoogleClientHeaderElement)", generatorVersion)
+	pn("}\n")
 
 	for _, res := range a.doc.Resources {
 		a.generateResource(res)
@@ -1785,6 +1792,7 @@
 	pn(" reqHeaders[k] = v")
 	pn("}")
 	pn(`reqHeaders.Set("User-Agent",c.s.userAgent())`)
+	pn(`reqHeaders.Set("x-goog-api-client", c.s.clientHeader())`)
 	if httpMethod == "GET" {
 		pn(`if c.ifNoneMatch_ != "" {`)
 		pn(` reqHeaders.Set("If-None-Match",  c.ifNoneMatch_)`)
diff --git a/google-api-go-generator/testdata/any.want b/google-api-go-generator/testdata/any.want
index 7804c64..6ccd585 100644
--- a/google-api-go-generator/testdata/any.want
+++ b/google-api-go-generator/testdata/any.want
@@ -59,9 +59,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Projects *ProjectsService
 }
@@ -73,6 +74,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewProjectsService(s *Service) *ProjectsService {
 	rs := &ProjectsService{s: s}
 	rs.LogServices = NewProjectsLogServicesService(s)
@@ -800,6 +805,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1027,6 +1033,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1213,6 +1220,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.logsink)
 	if err != nil {
@@ -1356,6 +1364,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1beta3/projects/{projectsId}/logServices/{logServicesId}/sinks/{sinksId}")
@@ -1510,6 +1519,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1665,6 +1675,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1805,6 +1816,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.logsink)
 	if err != nil {
@@ -1955,6 +1967,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1beta3/projects/{projectsId}/logs/{logsId}")
@@ -2138,6 +2151,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2317,6 +2331,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.writelogentriesrequest)
 	if err != nil {
@@ -2460,6 +2475,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.logsink)
 	if err != nil {
@@ -2603,6 +2619,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1beta3/projects/{projectsId}/logs/{logsId}/sinks/{sinksId}")
@@ -2757,6 +2774,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2912,6 +2930,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3052,6 +3071,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.logsink)
 	if err != nil {
diff --git a/google-api-go-generator/testdata/arrayofarray-1.want b/google-api-go-generator/testdata/arrayofarray-1.want
index 2addf99..5ae8ebf 100644
--- a/google-api-go-generator/testdata/arrayofarray-1.want
+++ b/google-api-go-generator/testdata/arrayofarray-1.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 // GeoJsonMultiPolygon: Multi Polygon
 type GeoJsonMultiPolygon struct {
 	// Coordinates: Coordinate arrays.
diff --git a/google-api-go-generator/testdata/arrayofenum.want b/google-api-go-generator/testdata/arrayofenum.want
index a08df33..0c16296 100644
--- a/google-api-go-generator/testdata/arrayofenum.want
+++ b/google-api-go-generator/testdata/arrayofenum.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 // Container: Represents a Google Tag Manager Container.
 type Container struct {
 	// AccountId: GTM Account ID.
diff --git a/google-api-go-generator/testdata/arrayofmapofobjects.want b/google-api-go-generator/testdata/arrayofmapofobjects.want
index 78f3237..9b80efd 100644
--- a/google-api-go-generator/testdata/arrayofmapofobjects.want
+++ b/google-api-go-generator/testdata/arrayofmapofobjects.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 type Analyze struct {
 	// Errors: List of errors with the data.
 	Errors []map[string]Property `json:"errors,omitempty"`
diff --git a/google-api-go-generator/testdata/arrayofmapofstrings.want b/google-api-go-generator/testdata/arrayofmapofstrings.want
index 6056110..c86e9fa 100644
--- a/google-api-go-generator/testdata/arrayofmapofstrings.want
+++ b/google-api-go-generator/testdata/arrayofmapofstrings.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 type Analyze struct {
 	// Errors: List of errors with the data.
 	Errors []map[string]string `json:"errors,omitempty"`
diff --git a/google-api-go-generator/testdata/blogger-3.want b/google-api-go-generator/testdata/blogger-3.want
index d5baa96..c13318f 100644
--- a/google-api-go-generator/testdata/blogger-3.want
+++ b/google-api-go-generator/testdata/blogger-3.want
@@ -71,9 +71,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	BlogUserInfos *BlogUserInfosService
 
@@ -99,6 +100,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewBlogUserInfosService(s *Service) *BlogUserInfosService {
 	rs := &BlogUserInfosService{s: s}
 	return rs
@@ -1585,6 +1590,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1744,6 +1750,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1887,6 +1894,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2041,6 +2049,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2191,6 +2200,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}/comments/{commentId}/approve")
@@ -2334,6 +2344,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}/comments/{commentId}")
@@ -2460,6 +2471,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2674,6 +2686,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2936,6 +2949,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3116,6 +3130,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}/comments/{commentId}/spam")
@@ -3259,6 +3274,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}/comments/{commentId}/removecontent")
@@ -3420,6 +3436,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3563,6 +3580,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/pages/{pageId}")
@@ -3690,6 +3708,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3841,6 +3860,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.page)
 	if err != nil {
@@ -4013,6 +4033,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4178,6 +4199,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.page)
 	if err != nil {
@@ -4321,6 +4343,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.page)
 	if err != nil {
@@ -4482,6 +4505,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4719,6 +4743,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4953,6 +4978,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}")
@@ -5087,6 +5113,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5272,6 +5299,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5435,6 +5463,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.post)
 	if err != nil {
@@ -5665,6 +5694,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5899,6 +5929,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.post)
 	if err != nil {
@@ -6047,6 +6078,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}/publish")
@@ -6186,6 +6218,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "blogs/{blogId}/posts/{postId}/revert")
@@ -6348,6 +6381,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -6506,6 +6540,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.post)
 	if err != nil {
@@ -6656,6 +6691,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/floats.want b/google-api-go-generator/testdata/floats.want
index e1ac9ef..8a37ddc 100644
--- a/google-api-go-generator/testdata/floats.want
+++ b/google-api-go-generator/testdata/floats.want
@@ -54,9 +54,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -66,6 +67,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 // Utilization: CPU utilization policy.
 type Utilization struct {
 	Average float64 `json:"average,omitempty"`
diff --git a/google-api-go-generator/testdata/getwithoutbody.want b/google-api-go-generator/testdata/getwithoutbody.want
index 111b492..2d4a7fb 100644
--- a/google-api-go-generator/testdata/getwithoutbody.want
+++ b/google-api-go-generator/testdata/getwithoutbody.want
@@ -53,9 +53,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	MetricDescriptors *MetricDescriptorsService
 }
@@ -67,6 +68,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewMetricDescriptorsService(s *Service) *MetricDescriptorsService {
 	rs := &MetricDescriptorsService{s: s}
 	return rs
@@ -227,6 +232,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/mapofany.want b/google-api-go-generator/testdata/mapofany.want
index 97eab91..94a8daa 100644
--- a/google-api-go-generator/testdata/mapofany.want
+++ b/google-api-go-generator/testdata/mapofany.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 type JsonValue interface{}
 
 type TableDataInsertAllRequest struct {
diff --git a/google-api-go-generator/testdata/mapofarrayofobjects.want b/google-api-go-generator/testdata/mapofarrayofobjects.want
index 7de9989..ccdec5b 100644
--- a/google-api-go-generator/testdata/mapofarrayofobjects.want
+++ b/google-api-go-generator/testdata/mapofarrayofobjects.want
@@ -53,9 +53,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Atlas *AtlasService
 }
@@ -67,6 +68,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewAtlasService(s *Service) *AtlasService {
 	rs := &AtlasService{s: s}
 	return rs
@@ -174,6 +179,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/mapofint64strings.want b/google-api-go-generator/testdata/mapofint64strings.want
index cc98c6a..56786a8 100644
--- a/google-api-go-generator/testdata/mapofint64strings.want
+++ b/google-api-go-generator/testdata/mapofint64strings.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 type TestResultSummaryToolGroupTestSuite struct {
 	Passed bool `json:"passed,omitempty"`
 
diff --git a/google-api-go-generator/testdata/mapofobjects.want b/google-api-go-generator/testdata/mapofobjects.want
index f425f21..2494e62 100644
--- a/google-api-go-generator/testdata/mapofobjects.want
+++ b/google-api-go-generator/testdata/mapofobjects.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 type Entity struct {
 	// Properties: The entity's properties.
 	Properties map[string]EntityProperties `json:"properties,omitempty"`
diff --git a/google-api-go-generator/testdata/mapofstrings-1.want b/google-api-go-generator/testdata/mapofstrings-1.want
index ce3dcd1..5b1c38d 100644
--- a/google-api-go-generator/testdata/mapofstrings-1.want
+++ b/google-api-go-generator/testdata/mapofstrings-1.want
@@ -53,9 +53,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Atlas *AtlasService
 }
@@ -67,6 +68,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewAtlasService(s *Service) *AtlasService {
 	rs := &AtlasService{s: s}
 	return rs
@@ -171,6 +176,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/param-rename.want b/google-api-go-generator/testdata/param-rename.want
index d48a249..cc32025 100644
--- a/google-api-go-generator/testdata/param-rename.want
+++ b/google-api-go-generator/testdata/param-rename.want
@@ -54,9 +54,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Events *EventsService
 
@@ -70,6 +71,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewEventsService(s *Service) *EventsService {
 	rs := &EventsService{s: s}
 	return rs
@@ -149,6 +154,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "calendars/{calendarId}/events/{eventId}/move")
@@ -295,6 +301,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/quotednum.want b/google-api-go-generator/testdata/quotednum.want
index 222faf4..07bf259 100644
--- a/google-api-go-generator/testdata/quotednum.want
+++ b/google-api-go-generator/testdata/quotednum.want
@@ -60,9 +60,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -72,6 +73,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 // Creative: A creative and its classification data.
 type Creative struct {
 	// AdvertiserId: Detected advertiser id, if any. Read-only. This field
diff --git a/google-api-go-generator/testdata/repeated.want b/google-api-go-generator/testdata/repeated.want
index 0428240..95165f7 100644
--- a/google-api-go-generator/testdata/repeated.want
+++ b/google-api-go-generator/testdata/repeated.want
@@ -53,9 +53,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Accounts *AccountsService
 }
@@ -67,6 +68,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewAccountsService(s *Service) *AccountsService {
 	rs := &AccountsService{s: s}
 	rs.Reports = NewAccountsReportsService(s)
@@ -182,6 +187,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/resource-named-service.want b/google-api-go-generator/testdata/resource-named-service.want
index 59b3b92..08b52fe 100644
--- a/google-api-go-generator/testdata/resource-named-service.want
+++ b/google-api-go-generator/testdata/resource-named-service.want
@@ -61,9 +61,10 @@
 }
 
 type APIService struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Apps *AppsService
 }
@@ -75,6 +76,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *APIService) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewAppsService(s *APIService) *AppsService {
 	rs := &AppsService{s: s}
 	rs.Locations = NewAppsLocationsService(s)
@@ -2180,6 +2185,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2312,6 +2318,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.repairapplicationrequest)
 	if err != nil {
@@ -2456,6 +2463,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2623,6 +2631,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2801,6 +2810,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2971,6 +2981,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3136,6 +3147,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/apps/{appsId}/services/{servicesId}")
@@ -3280,6 +3292,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3439,6 +3452,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3628,6 +3642,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.service)
 	if err != nil {
@@ -3781,6 +3796,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.version)
 	if err != nil {
@@ -3924,6 +3940,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/apps/{appsId}/services/{servicesId}/versions/{versionsId}")
@@ -4091,6 +4108,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4280,6 +4298,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4486,6 +4505,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.version)
 	if err != nil {
@@ -4652,6 +4672,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.debuginstancerequest)
 	if err != nil {
@@ -4813,6 +4834,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v1/apps/{appsId}/services/{servicesId}/versions/{versionsId}/instances/{instancesId}")
@@ -4977,6 +4999,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5156,6 +5179,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/google-api-go-generator/testdata/unfortunatedefaults.want b/google-api-go-generator/testdata/unfortunatedefaults.want
index f884ed2..afdeba5 100644
--- a/google-api-go-generator/testdata/unfortunatedefaults.want
+++ b/google-api-go-generator/testdata/unfortunatedefaults.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 // Thing: don't care
 type Thing struct {
 	// BoolEmptyDefaultA:
diff --git a/google-api-go-generator/testdata/variants.want b/google-api-go-generator/testdata/variants.want
index 1bdd7be..5ec4e51 100644
--- a/google-api-go-generator/testdata/variants.want
+++ b/google-api-go-generator/testdata/variants.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 type GeoJsonGeometry map[string]interface{}
 
 func (t GeoJsonGeometry) Type() string {
diff --git a/google-api-go-generator/testdata/wrapnewlines.want b/google-api-go-generator/testdata/wrapnewlines.want
index 4d44d07..3ac3551 100644
--- a/google-api-go-generator/testdata/wrapnewlines.want
+++ b/google-api-go-generator/testdata/wrapnewlines.want
@@ -52,9 +52,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 }
 
 func (s *Service) userAgent() string {
@@ -64,6 +65,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 // Thing: don't care
 type Thing struct {
 	// Oneline: First sentence. Second sentence. Description is long enough
diff --git a/monitoring/v3/monitoring-gen.go b/monitoring/v3/monitoring-gen.go
index 711d9eb..7e837a2 100644
--- a/monitoring/v3/monitoring-gen.go
+++ b/monitoring/v3/monitoring-gen.go
@@ -73,9 +73,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	Categories *CategoriesService
 
@@ -89,6 +90,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewCategoriesService(s *Service) *CategoriesService {
 	rs := &CategoriesService{s: s}
 	rs.MetricAssociations = NewCategoriesMetricAssociationsService(s)
@@ -2022,6 +2027,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2217,6 +2223,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2386,6 +2393,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.category)
 	if err != nil {
@@ -2520,6 +2528,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v3/{+name}")
@@ -2681,6 +2690,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2850,6 +2860,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.metricassociation)
 	if err != nil {
@@ -2984,6 +2995,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v3/{+name}")
@@ -3145,6 +3157,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3317,6 +3330,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.createcollectdtimeseriesrequest)
 	if err != nil {
@@ -3461,6 +3475,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.group)
 	if err != nil {
@@ -3600,6 +3615,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v3/{+name}")
@@ -3737,6 +3753,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3924,6 +3941,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4111,6 +4129,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.group)
 	if err != nil {
@@ -4304,6 +4323,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4486,6 +4506,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.metricdescriptor)
 	if err != nil {
@@ -4622,6 +4643,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "v3/{+name}")
@@ -4760,6 +4782,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4930,6 +4953,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5110,6 +5134,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5280,6 +5305,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5455,6 +5481,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.createtimeseriesrequest)
 	if err != nil {
@@ -5764,6 +5791,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
diff --git a/storage/v1/storage-gen.go b/storage/v1/storage-gen.go
index 0f1d094..849d52f 100644
--- a/storage/v1/storage-gen.go
+++ b/storage/v1/storage-gen.go
@@ -78,9 +78,10 @@
 }
 
 type Service struct {
-	client    *http.Client
-	BasePath  string // API endpoint base URL
-	UserAgent string // optional additional User-Agent fragment
+	client                    *http.Client
+	BasePath                  string // API endpoint base URL
+	UserAgent                 string // optional additional User-Agent fragment
+	GoogleClientHeaderElement string // client header fragment, for Google use only
 
 	BucketAccessControls *BucketAccessControlsService
 
@@ -102,6 +103,10 @@
 	return googleapi.UserAgent + " " + s.UserAgent
 }
 
+func (s *Service) clientHeader() string {
+	return gensupport.GoogleClientHeader("20170210", s.GoogleClientHeaderElement)
+}
+
 func NewBucketAccessControlsService(s *Service) *BucketAccessControlsService {
 	rs := &BucketAccessControlsService{s: s}
 	return rs
@@ -1438,6 +1443,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/acl/{entity}")
@@ -1556,6 +1562,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1693,6 +1700,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucketaccesscontrol)
 	if err != nil {
@@ -1836,6 +1844,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -1968,6 +1977,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucketaccesscontrol)
 	if err != nil {
@@ -2112,6 +2122,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucketaccesscontrol)
 	if err != nil {
@@ -2268,6 +2279,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}")
@@ -2417,6 +2429,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -2625,6 +2638,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucket)
 	if err != nil {
@@ -2851,6 +2865,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3101,6 +3116,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucket2)
 	if err != nil {
@@ -3370,6 +3386,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.bucket2)
 	if err != nil {
@@ -3567,6 +3584,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.channel)
 	if err != nil {
@@ -3664,6 +3682,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/defaultObjectAcl/{entity}")
@@ -3782,6 +3801,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -3920,6 +3940,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
 	if err != nil {
@@ -4080,6 +4101,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4224,6 +4246,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
 	if err != nil {
@@ -4368,6 +4391,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
 	if err != nil {
@@ -4521,6 +4545,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}/acl/{entity}")
@@ -4663,6 +4688,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -4824,6 +4850,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
 	if err != nil {
@@ -4991,6 +5018,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -5147,6 +5175,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
 	if err != nil {
@@ -5315,6 +5344,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.objectaccesscontrol)
 	if err != nil {
@@ -5511,6 +5541,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.composerequest)
 	if err != nil {
@@ -5823,6 +5854,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object)
 	if err != nil {
@@ -6131,6 +6163,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	c.urlParams_.Set("alt", alt)
 	urls := googleapi.ResolveRelative(c.s.BasePath, "b/{bucket}/o/{object}")
@@ -6331,6 +6364,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -6673,6 +6707,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object)
 	if err != nil {
@@ -7005,6 +7040,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	if c.ifNoneMatch_ != "" {
 		reqHeaders.Set("If-None-Match", c.ifNoneMatch_)
 	}
@@ -7274,6 +7310,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object2)
 	if err != nil {
@@ -7623,6 +7660,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object)
 	if err != nil {
@@ -7955,6 +7993,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.object2)
 	if err != nil {
@@ -8233,6 +8272,7 @@
 		reqHeaders[k] = v
 	}
 	reqHeaders.Set("User-Agent", c.s.userAgent())
+	reqHeaders.Set("x-goog-api-client", c.s.clientHeader())
 	var body io.Reader = nil
 	body, err := googleapi.WithoutDataWrapper.JSONReader(c.channel)
 	if err != nil {