Move creation of PeerConnection from the RenderView to the RenderThreadImpl.

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 <list>
 #include <map>
 #include <string>
-#include <utility>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
-#include "base/gtest_prod_util.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
-#include "base/message_loop_proxy.h"
 #include "base/threading/non_thread_safe.h"
-#include "base/threading/thread.h"
 #include "content/common/content_export.h"
 #include "content/public/renderer/render_view_observer.h"
-#include "content/renderer/media/media_stream_extra_data.h"
 #include "content/renderer/media/media_stream_dispatcher_eventhandler.h"
-#include "content/renderer/media/rtc_video_decoder.h"
-#include "content/renderer/p2p/socket_dispatcher.h"
 #include "third_party/libjingle/source/talk/app/webrtc/mediastream.h"
 #include "third_party/libjingle/source/talk/base/scoped_ref_ptr.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebUserMediaClient.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebUserMediaRequest.h"
 #include "webkit/media/media_stream_client.h"
 
-namespace base {
-class WaitableEvent;
-}
-
-namespace content {
-class IpcNetworkManager;
-class IpcPacketSocketFactory;
-}
-
-namespace talk_base {
-class Thread;
-}
-
 namespace WebKit {
-class WebFrame;
-class WebMediaStreamComponent;
 class WebMediaStreamDescriptor;
-class WebPeerConnection00Handler;
-class WebPeerConnection00HandlerClient;
-class WebPeerConnectionHandler;
-class WebPeerConnectionHandlerClient;
 }
 
 class MediaStreamDispatcher;
 class MediaStreamDependencyFactory;
-class PeerConnectionHandlerBase;
 class VideoCaptureImplManager;
-class RTCVideoDecoder;
 
 // 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)
 // in the browser process. It must be created, called and destroyed on the
 // render thread.
-// MediaStreamImpl have weak pointers to a P2PSocketDispatcher and a
-// MediaStreamDispatcher. These objects are also RenderViewObservers.
-// MediaStreamImpl must be deleted before the P2PSocketDispatcher.
+// MediaStreamImpl have weak pointers to a MediaStreamDispatcher.
 class CONTENT_EXPORT MediaStreamImpl
     : public content::RenderViewObserver,
       NON_EXPORTED_BASE(public WebKit::WebUserMediaClient),
       NON_EXPORTED_BASE(public webkit_media::MediaStreamClient),
       public MediaStreamDispatcherEventHandler,
       public base::SupportsWeakPtr<MediaStreamImpl>,
       NON_EXPORTED_BASE(public base::NonThreadSafe) {
  public:
   MediaStreamImpl(
       content::RenderView* render_view,
       MediaStreamDispatcher* media_stream_dispatcher,
-      content::P2PSocketDispatcher* p2p_socket_dispatcher,
       VideoCaptureImplManager* vc_manager,
       MediaStreamDependencyFactory* dependency_factory);
   virtual ~MediaStreamImpl();
 
-  virtual WebKit::WebPeerConnection00Handler* CreatePeerConnectionHandlerJsep(
-      WebKit::WebPeerConnection00HandlerClient* client);
   // Stops a local MediaStream by notifying the MediaStreamDispatcher that the
   // stream no longer may be used.
   virtual void StopLocalMediaStream(
       const WebKit::WebMediaStreamDescriptor& stream);
-  // A new MediaStream have been created based on existing tracks.
-  virtual void CreateMediaStream(
-      WebKit::WebFrame* frame,
-      WebKit::WebMediaStreamDescriptor* stream);
 
   // WebKit::WebUserMediaClient implementation
   virtual void requestUserMedia(
       const WebKit::WebUserMediaRequest& user_media_request,
       const WebKit::WebVector<WebKit::WebMediaStreamSource>& audio_sources,
       const WebKit::WebVector<WebKit::WebMediaStreamSource>& video_sources)
       OVERRIDE;
   virtual void cancelUserMediaRequest(
       const WebKit::WebUserMediaRequest& user_media_request) OVERRIDE;
 
@@ skipping 51 matching lines @@
     WebKit::WebUserMediaRequest request_;
   };
   typedef std::map<int, UserMediaRequestInfo> MediaRequestMap;
 
   // We keep a list of the label and WebFrame of generated local media streams,
   // so that we can stop them when needed.
   typedef std::map<std::string, WebKit::WebFrame*> LocalNativeStreamMap;
   typedef talk_base::scoped_refptr<webrtc::LocalMediaStreamInterface>
       LocalNativeStreamPtr;
 
-  void InitializeWorkerThread(talk_base::Thread** thread,
-                              base::WaitableEvent* event);
-
-  void CreateIpcNetworkManagerOnWorkerThread(base::WaitableEvent* event);
-  void DeleteIpcNetworkManager();
-
-  bool EnsurePeerConnectionFactory();
-  void CleanupPeerConnectionFactory();
-
   scoped_refptr<media::VideoDecoder> CreateLocalVideoDecoder(
       webrtc::MediaStreamInterface* stream,
       media::MessageLoopFactory* message_loop_factory);
   scoped_refptr<media::VideoDecoder> CreateRemoteVideoDecoder(
       webrtc::MediaStreamInterface* stream,
       media::MessageLoopFactory* message_loop_factory);
-  bool CreateNativeLocalMediaStream(
-      WebKit::WebMediaStreamDescriptor* description);
 
-  scoped_ptr<MediaStreamDependencyFactory> dependency_factory_;
+  // Weak ref to a MediaStreamDependencyFactory, owned by the RenderThread.
+  // It's valid for the lifetime of RenderThread.
+  MediaStreamDependencyFactory* dependency_factory_;
 
   // media_stream_dispatcher_ is a weak reference, owned by RenderView. It's
   // valid for the lifetime of RenderView.
   MediaStreamDispatcher* media_stream_dispatcher_;
 
-  scoped_refptr<content::P2PSocketDispatcher> p2p_socket_dispatcher_;
-
-  // We own network_manager_, must be deleted on the worker thread.
-  // The network manager uses |p2p_socket_dispatcher_|.
-  content::IpcNetworkManager* network_manager_;
-  scoped_ptr<content::IpcPacketSocketFactory> socket_factory_;
   scoped_refptr<VideoCaptureImplManager> vc_manager_;
 
   MediaRequestMap user_media_requests_;
   LocalNativeStreamMap local_media_streams_;
 
-  // PeerConnection threads. signaling_thread_ is created from the
-  // "current" chrome thread.
-  talk_base::Thread* signaling_thread_;
-  talk_base::Thread* worker_thread_;
-  base::Thread chrome_worker_thread_;
-
   DISALLOW_COPY_AND_ASSIGN(MediaStreamImpl);
 };
 
 #endif  // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_IMPL_H_