Add video frame refresh to MediaStream and VideoCapture stacks.

content/renderer/media/mock_media_stream_video_sink.h

 // 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.
 
 #ifndef CONTENT_RENDERER_MEDIA_MOCK_MEDIA_STREAM_VIDEO_SINK_H_
 #define CONTENT_RENDERER_MEDIA_MOCK_MEDIA_STREAM_VIDEO_SINK_H_
 
 #include "content/public/renderer/media_stream_video_sink.h"
 
 #include "base/memory/weak_ptr.h"
 #include "content/common/media/video_capture.h"
 #include "media/base/video_frame.h"
 #include "testing/gmock/include/gmock/gmock.h"
 
 namespace content {
 
 class MockMediaStreamVideoSink : public MediaStreamVideoSink {
  public:
   MockMediaStreamVideoSink();
   ~MockMediaStreamVideoSink() override;
 
+  void ConnectToTrack(const blink::WebMediaStreamTrack& track) {
+    MediaStreamVideoSink::ConnectToTrack(track, GetDeliverFrameCB());
+  }
+
+  void ConnectToTrackWithCallback(const blink::WebMediaStreamTrack& track,
+                                  const VideoCaptureDeliverFrameCB& callback) {
+    MediaStreamVideoSink::ConnectToTrack(track, callback);
+  }
+
+  void DisconnectFromTrack() {
+    MediaStreamVideoSink::DisconnectFromTrack();
+  }
+
   void OnReadyStateChanged(
       blink::WebMediaStreamSource::ReadyState state) override;
   void OnEnabledChanged(bool enabled) override;
 
   // Triggered when OnVideoFrame(const scoped_refptr<media::VideoFrame>& frame)
   // is called.
   MOCK_METHOD0(OnVideoFrame, void());
 
   VideoCaptureDeliverFrameCB GetDeliverFrameCB();
 
@@ skipping 14 matching lines @@
   media::VideoPixelFormat format_;
   blink::WebMediaStreamSource::ReadyState state_;
   gfx::Size frame_size_;
   scoped_refptr<media::VideoFrame> last_frame_;
   base::WeakPtrFactory<MockMediaStreamVideoSink> weak_factory_;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MOCK_MEDIA_STREAM_VIDEO_SINK_H_