Enabling sync_channel in the browser to allow accessibility code making blocking calls.  This replaces my previous CL that was somehow duplicating some of these functionalities.

BUG=None
TEST=Run the unit tests.

git-svn-id: svn://svn.chromium.org/chrome/trunk@691 0039d316-1c4b-4281-b951-d872f2087c98
17 files changed
tree: 4c1338a3c9d6f96bd3657a3fa2cc7a21c93e8ba5
  1. deps/
  2. src/