Implement and use VideoTrackSource directly.

content/renderer/media/webrtc/media_stream_remote_video_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 "content/renderer/media/webrtc/media_stream_remote_video_source.h"
 
 #include <utility>
 
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
@@ skipping 23 matching lines @@
       : MediaStreamRemoteVideoSource(std::move(observer)) {}
   using MediaStreamRemoteVideoSource::SinkInterfaceForTest;
 };
 
 class MediaStreamRemoteVideoSourceTest
     : public ::testing::Test {
  public:
   MediaStreamRemoteVideoSourceTest()
       : child_process_(new ChildProcess()),
         mock_factory_(new MockPeerConnectionDependencyFactory()),
-        webrtc_video_track_(mock_factory_->CreateLocalVideoTrack(
-            "test",
-            static_cast<cricket::VideoCapturer*>(NULL))),
+        webrtc_video_track_(MockWebRtcVideoTrack::Create("test")),
         remote_source_(new MediaStreamRemoteVideoSourceUnderTest(
             std::unique_ptr<TrackObserver>(
                 new TrackObserver(base::ThreadTaskRunnerHandle::Get(),
                                   webrtc_video_track_.get())))),
         number_of_successful_constraints_applied_(0),
         number_of_failed_constraints_applied_(0) {
     webkit_source_.initialize(base::UTF8ToUTF16("dummy_source_id"),
                               blink::WebMediaStreamSource::TypeVideo,
                               base::UTF8ToUTF16("dummy_source_name"),
                               true /* remote */);
@@ skipping 95 matching lines @@
   StopWebRtcTrack();
   base::RunLoop().RunUntilIdle();
   EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded,
             webkit_source().getReadyState());
   EXPECT_EQ(blink::WebMediaStreamSource::ReadyStateEnded, sink.state());
 
   track->RemoveSink(&sink);
 }
 
 }  // namespace content