Add srcObject attribute of type MediaStream to HTMLMediaElement.

content/renderer/media/webmediaplayer_ms.cc

Index: content/renderer/media/webmediaplayer_ms.cc
diff --git a/content/renderer/media/webmediaplayer_ms.cc b/content/renderer/media/webmediaplayer_ms.cc
index 147715b9e7b6cdd9354b5fa2561d52163cecb497..1187fab16d2959552bdeaf0c65b0d2205cc9cccb 100644
--- a/content/renderer/media/webmediaplayer_ms.cc
+++ b/content/renderer/media/webmediaplayer_ms.cc
@@ -19,16 +19,17 @@
 #include "content/public/renderer/media_stream_audio_renderer.h"
 #include "content/public/renderer/media_stream_renderer_factory.h"
 #include "content/public/renderer/video_frame_provider.h"
+#include "content/renderer/media/web_media_element_source_utils.h"
 #include "content/renderer/media/webmediaplayer_ms_compositor.h"
 #include "content/renderer/render_frame_impl.h"
 #include "content/renderer/render_thread_impl.h"
 #include "gpu/blink/webgraphicscontext3d_impl.h"
 #include "media/base/media_log.h"
 #include "media/base/video_frame.h"
+#include "third_party/WebKit/public/platform/WebMediaElementSource.h"
 #include "third_party/WebKit/public/platform/WebMediaPlayerClient.h"
 #include "third_party/WebKit/public/platform/WebRect.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
-#include "third_party/WebKit/public/platform/WebURL.h"
 
 namespace content {
 
@@ -101,7 +102,7 @@ WebMediaPlayerMS::~WebMediaPlayerMS() {
 }
 
 void WebMediaPlayerMS::load(LoadType load_type,
-                            const blink::WebURL& url,
+                            const blink::WebMediaElementSource& source,
                             CORSMode /*cors_mode*/) {
   DVLOG(1) << __FUNCTION__;
   DCHECK(thread_checker_.CalledOnValidThread());
@@ -109,27 +110,28 @@ void WebMediaPlayerMS::load(LoadType load_type,
   // TODO(acolwell): Change this to DCHECK_EQ(load_type, LoadTypeMediaStream)
   // once Blink-side changes land.
   DCHECK_NE(load_type, LoadTypeMediaSource);
+  blink::WebMediaStream web_stream =
+      GetWebMediaStreamFromWebMediaElementSource(source);
 
-  compositor_.reset(new WebMediaPlayerMSCompositor(compositor_task_runner_, url,
-                                                   AsWeakPtr()));
+  compositor_.reset(new WebMediaPlayerMSCompositor(compositor_task_runner_,
+                                                   web_stream, AsWeakPtr()));
 
   SetNetworkState(WebMediaPlayer::NetworkStateLoading);
   SetReadyState(WebMediaPlayer::ReadyStateHaveNothing);
-  media_log_->AddEvent(media_log_->CreateLoadEvent(url.string().utf8()));
+  std::string stream_id =
+      web_stream.isNull() ? std::string() : web_stream.id().utf8();
+  media_log_->AddEvent(media_log_->CreateLoadEvent(stream_id));
 
   video_frame_provider_ = renderer_factory_->GetVideoFrameProvider(
-      url,
-      base::Bind(&WebMediaPlayerMS::OnSourceError, AsWeakPtr()),
+      web_stream, base::Bind(&WebMediaPlayerMS::OnSourceError, AsWeakPtr()),
       base::Bind(&WebMediaPlayerMS::OnFrameAvailable, AsWeakPtr()),
-      media_task_runner_,
-      worker_task_runner_,
-      gpu_factories_);
+      media_task_runner_, worker_task_runner_, gpu_factories_);
 
   RenderFrame* const frame = RenderFrame::FromWebFrame(frame_);
 
   if (frame) {
     audio_renderer_ = renderer_factory_->GetAudioRenderer(
-        url, frame->GetRoutingID(), initial_audio_output_device_id_,
+        web_stream, frame->GetRoutingID(), initial_audio_output_device_id_,
         initial_security_origin_);
   }