GitLab

Marked IPC::ChannelProxy as non thread-safe. Added DCHECKs to verify that public methods (with Send() being the only exception) are called on the thread that created the object. 

Tests calling Send() from a wrong thread should be fixed first before similar check can be added to Send(). See http://crbug.com/163523 for details.

BUG=163091,163523

Review URL: https://chromiumcodereview.appspot.com/11308278

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@171106 0039d316-1c4b-4281-b951-d872f2087c98