[Sync] Fix sync proto files to better match server versions

BUG=
TEST=


Review URL: http://codereview.chromium.org/7607012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@96134 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed