Move creation of MediaStream renders from MediaStreamImpl to MediaStreamRenderFactory

content/renderer/media/media_stream_impl.h

 // Copyright (c) 2012 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_MEDIA_STREAM_IMPL_H_
 #define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_IMPL_H_
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/non_thread_safe.h"
 #include "content/common/content_export.h"
 #include "content/public/renderer/render_view_observer.h"
-#include "content/renderer/media/media_stream_client.h"
 #include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
 #include "content/renderer/media/media_stream_source.h"
 #include "third_party/WebKit/public/platform/WebMediaStream.h"
 #include "third_party/WebKit/public/platform/WebMediaStreamSource.h"
 #include "third_party/WebKit/public/platform/WebVector.h"
 #include "third_party/WebKit/public/web/WebUserMediaClient.h"
 #include "third_party/WebKit/public/web/WebUserMediaRequest.h"
 #include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h"
 
 namespace content {
-class MediaStreamAudioRenderer;
 class PeerConnectionDependencyFactory;
 class MediaStreamDispatcher;
 class MediaStreamVideoSource;
 class VideoCapturerDelegate;
-class WebRtcAudioRenderer;
-class WebRtcLocalAudioRenderer;
 
-// MediaStreamImpl is a delegate for the Media Stream API messages used by
-// WebKit. It ties together WebKit, native PeerConnection in libjingle and
-// MediaStreamManager (via MediaStreamDispatcher and MediaStreamDispatcherHost)
+// MediaStreamImpl is a delegate for the Media Stream GetUserMedia API.
+// It ties together WebKit and MediaStreamManager
+// (via MediaStreamDispatcher and MediaStreamDispatcherHost)
 // in the browser process. It must be created, called and destroyed on the
 // render thread.
 // MediaStreamImpl have weak pointers to a MediaStreamDispatcher.
 class CONTENT_EXPORT MediaStreamImpl
     : public RenderViewObserver,
       NON_EXPORTED_BASE(public blink::WebUserMediaClient),
-      NON_EXPORTED_BASE(public MediaStreamClient),
       public MediaStreamDispatcherEventHandler,
       public base::SupportsWeakPtr<MediaStreamImpl>,
       NON_EXPORTED_BASE(public base::NonThreadSafe) {
  public:
   MediaStreamImpl(
       RenderView* render_view,
       MediaStreamDispatcher* media_stream_dispatcher,
       PeerConnectionDependencyFactory* dependency_factory);
   virtual ~MediaStreamImpl();
 
   // blink::WebUserMediaClient implementation
   virtual void requestUserMedia(
-      const blink::WebUserMediaRequest& user_media_request) OVERRIDE;
+      const blink::WebUserMediaRequest& user_media_request);
   virtual void cancelUserMediaRequest(
-      const blink::WebUserMediaRequest& user_media_request) OVERRIDE;
-
-  // MediaStreamClient implementation.
-  virtual bool IsMediaStream(const GURL& url) OVERRIDE;
-  virtual scoped_refptr<VideoFrameProvider> GetVideoFrameProvider(
-      const GURL& url,
-      const base::Closure& error_cb,
-      const VideoFrameProvider::RepaintCB& repaint_cb) OVERRIDE;
-  virtual scoped_refptr<MediaStreamAudioRenderer>
-      GetAudioRenderer(const GURL& url, int render_frame_id) OVERRIDE;
+      const blink::WebUserMediaRequest& user_media_request);
 
   // MediaStreamDispatcherEventHandler implementation.
   virtual void OnStreamGenerated(
       int request_id,
       const std::string& label,
       const StreamDeviceInfoArray& audio_array,
       const StreamDeviceInfoArray& video_array) OVERRIDE;
   virtual void OnStreamGenerationFailed(
       int request_id,
       content::MediaStreamRequestResult result) OVERRIDE;
@@ skipping 19 matching lines @@
   // These methods are virtual for test purposes. A test can override them to
   // test requesting local media streams. The function notifies WebKit that the
   // |request| have completed.
   virtual void GetUserMediaRequestSucceeded(
        const blink::WebMediaStream& stream,
        blink::WebUserMediaRequest* request_info);
   virtual void GetUserMediaRequestFailed(
       blink::WebUserMediaRequest* request_info,
       content::MediaStreamRequestResult result);
 
-
-  // Returns the WebKit representation of a MediaStream given an URL.
-  // This is virtual for test purposes.
-  virtual blink::WebMediaStream GetMediaStream(const GURL& url);
-
   // Creates a MediaStreamVideoSource object.
   // This is virtual for test purposes.
   virtual MediaStreamVideoSource* CreateVideoSource(
       const StreamDeviceInfo& device,
       const MediaStreamSource::SourceStoppedCallback& stop_callback);
 
  private:
   // Class for storing information about a WebKit request to create a
   // MediaStream.
   class UserMediaRequestInfo
@@ skipping 24 matching lines @@
         const blink::WebMediaStreamSource& source,
         const blink::WebMediaConstraints& constraints);
 
     // Triggers |callback| when all sources used in this request have either
     // successfully started, or a source has failed to start.
     void CallbackOnTracksStarted(const ResourcesReady& callback);
 
     bool IsSourceUsed(const blink::WebMediaStreamSource& source) const;
     void RemoveSource(const blink::WebMediaStreamSource& source);
 
-    bool AreAllSourcesRemoved() const { return sources_.empty(); };
+    bool AreAllSourcesRemoved() const { return sources_.empty(); }
 
    private:
     void OnTrackStarted(MediaStreamSource* source, bool success);
     void CheckAllTracksStarted();
 
     ResourcesReady ready_callback_;
     bool request_failed_;
     // Sources used in this request.
     std::vector<blink::WebMediaStreamSource> sources_;
     std::vector<MediaStreamSource*> sources_waiting_for_callback_;
@@ skipping 45 matching lines @@
   void DeleteUserMediaRequestInfo(UserMediaRequestInfo* request);
 
   // Returns the source that use a device with |device.session_id|
   // and |device.device.id|. NULL if such source doesn't exist.
   const blink::WebMediaStreamSource* FindLocalSource(
       const StreamDeviceInfo& device) const;
 
   void StopLocalSource(const blink::WebMediaStreamSource& source,
                        bool notify_dispatcher);
 
-  scoped_refptr<WebRtcAudioRenderer> CreateRemoteAudioRenderer(
-      webrtc::MediaStreamInterface* stream, int render_frame_id);
-  scoped_refptr<WebRtcLocalAudioRenderer> CreateLocalAudioRenderer(
-      const blink::WebMediaStreamTrack& audio_track,
-      int render_frame_id);
-
-  // Returns a valid session id if a single capture device is currently open
-  // (and then the matching session_id), otherwise -1.
-  // This is used to pass on a session id to a webrtc audio renderer (either
-  // local or remote), so that audio will be rendered to a matching output
-  // device, should one exist.
-  // Note that if there are more than one open capture devices the function
-  // will not be able to pick an appropriate device and return false.
-  bool GetAuthorizedDeviceInfoForAudioRenderer(
-      int* session_id, int* output_sample_rate, int* output_buffer_size);
-
   // Weak ref to a PeerConnectionDependencyFactory, owned by the RenderThread.
   // It's valid for the lifetime of RenderThread.
   // TODO(xians): Remove this dependency once audio do not need it for local
   // audio.
   PeerConnectionDependencyFactory* dependency_factory_;
 
   // media_stream_dispatcher_ is a weak reference, owned by RenderView. It's
   // valid for the lifetime of RenderView.
   MediaStreamDispatcher* media_stream_dispatcher_;
 
   LocalStreamSources local_sources_;
 
   UserMediaRequests user_media_requests_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaStreamImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_IMPL_H_