Cast: deliver video frames on the IO thread

content/renderer/media/media_stream_impl_unittest.cc

Index: content/renderer/media/media_stream_impl_unittest.cc
diff --git a/content/renderer/media/media_stream_impl_unittest.cc b/content/renderer/media/media_stream_impl_unittest.cc
index 2d15fb166f47ecb674cb515dbc946d8bad4eb63b..3404ede4c32eafc873f8515ec37059082aee628e 100644
--- a/content/renderer/media/media_stream_impl_unittest.cc
+++ b/content/renderer/media/media_stream_impl_unittest.cc
@@ -3,6 +3,7 @@
 // found in the LICENSE file.
 
 #include "base/memory/scoped_ptr.h"
+#include "base/message_loop/message_loop.h"
 #include "base/strings/utf_string_conversions.h"
 #include "content/child/child_process.h"
 #include "content/renderer/media/media_stream.h"
@@ -167,6 +168,7 @@ class MediaStreamImplTest : public ::testing::Test {
   }
 
  protected:
+  base::MessageLoop message_loop_;
   scoped_ptr<ChildProcess> child_process_;
   scoped_ptr<MockMediaStreamDispatcher> ms_dispatcher_;
   scoped_ptr<MediaStreamImplUnderTest> ms_impl_;