Allow synchronous messages to be sent from threads other than the main thread.  This simplifies code that needs to do this (i.e. webkit db and file threads).

BUG=23423
Review URL: http://codereview.chromium.org/1601005

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@43752 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: 1e9499c21c23b52391d952572bd9059df532efcb
6 files changed
tree: 8c362a4dee07b728f642753d69101afab92c8018
  1. base/
  2. build/
  3. ipc/
  4. testing/