Adding a skeleton MediaStreamCenter.

content/renderer/media/media_stream_impl.cc

 // 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.
 
 #include "content/renderer/media/media_stream_impl.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/synchronization/waitable_event.h"
 #include "base/utf_string_conversions.h"
 #include "content/renderer/media/capture_video_decoder.h"
+#include "content/renderer/media/media_stream_center.h"
 #include "content/renderer/media/media_stream_dependency_factory.h"
 #include "content/renderer/media/media_stream_dispatcher.h"
 #include "content/renderer/media/peer_connection_handler.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "content/renderer/media/video_capture_module_impl.h"
 #include "content/renderer/media/webrtc_audio_device_impl.h"
 #include "content/renderer/p2p/ipc_network_manager.h"
 #include "content/renderer/p2p/ipc_socket_factory.h"
 #include "content/renderer/p2p/socket_dispatcher.h"
 #include "jingle/glue/thread_wrapper.h"
@@ skipping 50 matching lines @@
     MediaStreamDispatcher* media_stream_dispatcher,
     content::P2PSocketDispatcher* p2p_socket_dispatcher,
     VideoCaptureImplManager* vc_manager,
     MediaStreamDependencyFactory* dependency_factory)
     : dependency_factory_(dependency_factory),
       media_stream_dispatcher_(media_stream_dispatcher),
       p2p_socket_dispatcher_(p2p_socket_dispatcher),
       network_manager_(NULL),
       vc_manager_(vc_manager),
       peer_connection_handler_(NULL),
+      media_stream_center_(NULL),
       message_loop_proxy_(base::MessageLoopProxy::current()),
       signaling_thread_(NULL),
       worker_thread_(NULL),
       chrome_worker_thread_("Chrome_libJingle_WorkerThread") {
 }
 
 MediaStreamImpl::~MediaStreamImpl() {
   DCHECK(!peer_connection_handler_);
   if (dependency_factory_.get())
     dependency_factory_->ReleasePeerConnectionFactory();
@@ skipping 24 matching lines @@
   EnsurePeerConnectionFactory();
 
   peer_connection_handler_ = new PeerConnectionHandler(
       client,
       this,
       dependency_factory_.get());
 
   return peer_connection_handler_;
 }
 
+WebKit::WebMediaStreamCenter* MediaStreamImpl::CreateMediaStreamCenter(
+    WebKit::WebMediaStreamCenterClient* client) {
+  DCHECK(CalledOnValidThread());
+  DCHECK(!media_stream_center_);
+
+  media_stream_center_ = new content::MediaStreamCenter(client);
+  return media_stream_center_;
+}
+
 void MediaStreamImpl::ClosePeerConnection() {
   DCHECK(CalledOnValidThread());
   video_renderer_ = NULL;
   peer_connection_handler_ = NULL;
   // TODO(grunell): This is a temporary workaround for an error in native
   // PeerConnection where added live tracks are not seen on the remote side.
   MediaStreamTrackPtrMap::const_iterator it = local_tracks_.begin();
   for (; it != local_tracks_.end(); ++it)
     it->second->set_state(webrtc::MediaStreamTrackInterface::kEnded);
 }
@@ skipping 315 matching lines @@
 }
 
 MediaStreamImpl::VideoRendererWrapper::VideoRendererWrapper() {}
 
 MediaStreamImpl::VideoRendererWrapper::~VideoRendererWrapper() {}
 
 void MediaStreamImpl::VideoRendererWrapper::SetVideoDecoder(
     RTCVideoDecoder* decoder) {
   rtc_video_decoder_ = decoder;
 }