Change MediaStreamVideoSource to output different resolutions to different tracks depending on the …

content/renderer/media/media_stream_video_capture_source_unittest.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/bind.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_video_capturer_source.h"
 #include "content/renderer/media/media_stream_video_track.h"
 #include "content/renderer/media/mock_media_constraint_factory.h"
 #include "testing/gmock/include/gmock/gmock.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace content {
 
@@ skipping 41 matching lines @@
         base::Bind(
             &MediaStreamVideoCapturerSourceTest::OnConstraintsApplied,
             base::Unretained(this)),
             enabled);
   }
 
  protected:
   void OnConstraintsApplied(MediaStreamSource* source, bool success) {
   }
 
+  base::MessageLoopForUI message_loop_;
   scoped_ptr<ChildProcess> child_process_;
   blink::WebMediaStreamSource webkit_source_;
   MediaStreamVideoCapturerSource* source_;  // owned by webkit_source.
   scoped_refptr<MockVideoCapturerDelegate> delegate_;
 };
 
 TEST_F(MediaStreamVideoCapturerSourceTest, TabCaptureAllowResolutionChange) {
   StreamDeviceInfo device_info;
   device_info.device.type = MEDIA_TAB_VIDEO_CAPTURE;
   InitWithDeviceInfo(device_info);
@@ skipping 16 matching lines @@
   EXPECT_CALL(*delegate_, StartCapture(
       testing::Field(&media::VideoCaptureParams::allow_resolution_change, true),
       testing::_,
       testing::_)).Times(1);
   blink::WebMediaStreamTrack track = StartSource();
   // When the track goes out of scope, the source will be stopped.
   EXPECT_CALL(*delegate_, StopCapture());
 }
 
 }  // namespace content