Update Protocol Buffers to 2.6.1

This CL rolls following commits of protobuf:
  from: 172019c40bf548908ab09bfd276074c929d48415
    to: bba83652e1be610bdb7ee1566ad18346d98b843c

Full commit summary is available here.
https://github.com/google/protobuf/compare/172019c40bf548908ab09bfd276074c929d48415...bba83652e1be610bdb7ee1566ad18346d98b843c

Reason:
protobuf 2.5.x lacks aarch64/mipsel64 support.  We need to update protobuf to unblock the native 64-bit support for Android.

BUG=Issue mozc:259
TEST=unittest

git-svn-id: https://mozc.googlecode.com/svn/trunk@438 a6090854-d499-a067-5803-1114d4e51264
3 files changed
tree: d843b244fd02388d42044853d5c9cf44711a1fba
  1. src/