Add thread checking to RunLoop, deprecate MessageLoopRunner.

extensions/test/result_catcher.cc

Index: extensions/test/result_catcher.cc
diff --git a/extensions/test/result_catcher.cc b/extensions/test/result_catcher.cc
index 53c569ff0fc1445a78ed73ae5fd255620b0a3d7b..f2e9801e5fadc5b621cd169c1c01117be8e208c0 100644
--- a/extensions/test/result_catcher.cc
+++ b/extensions/test/result_catcher.cc
@@ -30,7 +30,7 @@ bool ResultCatcher::GetNextResult() {
   // empty.
   if (results_.empty()) {
     base::RunLoop run_loop;
-    quit_closure_ = content::GetQuitTaskForRunLoop(&run_loop);
+    quit_closure_ = content::GetDeferredQuitTaskForRunLoop(&run_loop);
     content::RunThisRunLoop(&run_loop);
     quit_closure_ = base::Closure();
   }