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boliu@chromium.org authored
Support using single-threaded compositor with a single DelegatedRendererLayer on a thread that does not have a MessageLoop. First, Allow BlockingTaskRunner to be used on a thread that does not have a MessageLoopProxy. For these threads, all PostTask calls must be wrapped in CapturePostTasks. Use PlatformThreadId rather than MessageLoopProxy::BelongsToCurrent thread to check for current. Then fix DCHECK failures in Proxy to allow MessageLoopProxy to be NULL. Add tests to verify these code paths are indeed working. BUG=344087 Review URL: https://codereview.chromium.org/292493006 git-svn-id: svn://svn.chromium.org/chrome/trunk/src@272473 0039d316-1c4b-4281-b951-d872f2087c98
c6ae6302
