Add srcObject attribute of type MediaStream to HTMLMediaElement.

content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc

Index: content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
diff --git a/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc b/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
index 758312eccbacf51f147d2228a6b4d3ec71e3eccf..641b38cb8a994914988ea60f7a4d8b5720c80ac3 100644
--- a/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
+++ b/content/shell/renderer/layout_test/test_media_stream_renderer_factory.cc
@@ -18,14 +18,12 @@ static const int kVideoCaptureWidth = 352;
 static const int kVideoCaptureHeight = 288;
 static const int kVideoCaptureFrameDurationMs = 33;
 
-bool IsMockMediaStreamWithVideo(const WebURL& url) {
+bool IsMockMediaStreamWithVideo(const WebMediaStream& web_stream) {
 #if ENABLE_WEBRTC
-  WebMediaStream descriptor(
-      WebMediaStreamRegistry::lookupMediaStreamDescriptor(url));
-  if (descriptor.isNull())
+  if (web_stream.isNull())
     return false;
   WebVector<WebMediaStreamTrack> video_tracks;
-  descriptor.videoTracks(video_tracks);
+  web_stream.videoTracks(video_tracks);
   return video_tracks.size() > 0;
 #else
   return false;
@@ -42,13 +40,13 @@ TestMediaStreamRendererFactory::~TestMediaStreamRendererFactory() {}
 
 scoped_refptr<VideoFrameProvider>
 TestMediaStreamRendererFactory::GetVideoFrameProvider(
-    const GURL& url,
+    const blink::WebMediaStream& web_stream,
     const base::Closure& error_cb,
     const VideoFrameProvider::RepaintCB& repaint_cb,
     const scoped_refptr<base::SingleThreadTaskRunner>& media_task_runner,
     const scoped_refptr<base::TaskRunner>& worker_task_runner,
     media::GpuVideoAcceleratorFactories* gpu_factories) {
-  if (!IsMockMediaStreamWithVideo(url))
+  if (!IsMockMediaStreamWithVideo(web_stream))
     return NULL;
 
   return new TestVideoFrameProvider(
@@ -60,7 +58,7 @@ TestMediaStreamRendererFactory::GetVideoFrameProvider(
 
 scoped_refptr<MediaStreamAudioRenderer>
 TestMediaStreamRendererFactory::GetAudioRenderer(
-    const GURL& url,
+    const blink::WebMediaStream& web_stream,
     int render_frame_id,
     const std::string& device_id,
     const url::Origin& security_origin) {