Integrate VDA with WebRTC.

content/renderer/media/media_stream_dependency_factory.cc

Index: content/renderer/media/media_stream_dependency_factory.cc
diff --git a/content/renderer/media/media_stream_dependency_factory.cc b/content/renderer/media/media_stream_dependency_factory.cc
index 421bfacfb8e34bdc5c8a0827b5a886f712e0a01a..c11e85370565764180964c7685863886f3b7f122 100644
--- a/content/renderer/media/media_stream_dependency_factory.cc
+++ b/content/renderer/media/media_stream_dependency_factory.cc
@@ -12,6 +12,7 @@
 #include "content/renderer/media/rtc_media_constraints.h"
 #include "content/renderer/media/rtc_peer_connection_handler.h"
 #include "content/renderer/media/rtc_video_capturer.h"
+#include "content/renderer/media/rtc_video_decoder_factory.h"
 #include "content/renderer/media/video_capture_impl_manager.h"
 #include "content/renderer/media/webaudio_capturer_source.h"
 #include "content/renderer/media/webrtc_audio_device_impl.h"
@@ -200,9 +201,11 @@ class SourceStateObserver : public webrtc::ObserverInterface,
 
 MediaStreamDependencyFactory::MediaStreamDependencyFactory(
     VideoCaptureImplManager* vc_manager,
+    const scoped_refptr<media::GpuVideoDecoder::Factories>& gpu_factories,
     P2PSocketDispatcher* p2p_socket_dispatcher)
     : network_manager_(NULL),
       vc_manager_(vc_manager),
+      gpu_factories_(gpu_factories),
       p2p_socket_dispatcher_(p2p_socket_dispatcher),
       signaling_thread_(NULL),
       worker_thread_(NULL),
@@ -459,10 +462,17 @@ bool MediaStreamDependencyFactory::CreatePeerConnectionFactory() {
   if (!pc_factory_) {
     DCHECK(!audio_device_);
     audio_device_ = new WebRtcAudioDeviceImpl();
+
+    scoped_ptr<RTCVideoDecoderFactory> decoder_factory;
+    if (gpu_factories_ != NULL) {
+      decoder_factory.reset(new RTCVideoDecoderFactory(gpu_factories_));

[Ami GONE FROM CHROMIUM, 2013/05/29 21:11:46]

There's an off-reviewlog thread about this, so I'm just leaving a note-to-self
here: this needs to be fixed so a single gpu_factories_ isn't used by more than
one <video> tag.

[wuchengli, 2013/06/10 12:33:42]

Now gpu_factories_ is copied for every video decoder in RTCVideoDecoderFactory.

+    }
+
     scoped_refptr<webrtc::PeerConnectionFactoryInterface> factory(
         webrtc::CreatePeerConnectionFactory(worker_thread_,
                                             signaling_thread_,
-                                            audio_device_));
+                                            audio_device_,
+                                            decoder_factory.release()));
     if (factory)
       pc_factory_ = factory;
     else