Adds MediaStreamSource, MediaStreamAudioSource and MediaStreamVideoCaptureDeviceSource

content/renderer/media/media_stream_video_source.cc

 // Copyright 2014 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_video_source.h"
 
 #include "base/logging.h"
 #include "content/public/renderer/media_stream_video_sink.h"
 
 namespace content {
 
+MediaStreamVideoSource::MediaStreamVideoSource(
+    MediaStreamDependencyFactory* factory)
+    : factory_(factory) {
+}
+
+MediaStreamVideoSource::~MediaStreamVideoSource() {
+}
+
 void MediaStreamVideoSource::AddTrack(
-    const blink::WebMediaStreamTrack& track,
-    const blink::WebMediaConstraints& constraints) {
-  // TODO(ronghuawu): Put |track| in the registered tracks list. Will later
-  // deliver frames to it according to |constraints|.
+    const blink::WebMediaStreamTrack& track) {
+  // TODO(perkj): Use the MediaStreamDependencyFactory for now to create the
+  // MediaStreamVideoTrack since creation is currently still depending on
+  // libjingle. The webrtc video track implementation will attach to the
+  // webrtc::VideoSourceInterface returned by GetAdapter() to receive video
+  // frames.
+  factory_->CreateNativeMediaStreamTrack(track);
 }
 
 void MediaStreamVideoSource::RemoveTrack(
     const blink::WebMediaStreamTrack& track) {
   // TODO(ronghuawu): Remove |track| from the list, i.e. will stop delivering
   // frame to |track|.
 }
 
 void MediaStreamVideoSource::SetReadyState(
     blink::WebMediaStreamSource::ReadyState state) {
   // TODO(ronghuawu): Sets WebMediaStreamSource's ready state and notifies the
   // ready state to all registered tracks.
 }
 
 void MediaStreamVideoSource::DeliverVideoFrame(
     const scoped_refptr<media::VideoFrame>& frame) {
   // TODO(ronghuawu): Deliver |frame| to all the registered tracks.
 }
 
-MediaStreamVideoSource::~MediaStreamVideoSource() {
+void MediaStreamVideoSource::SetAdapter(
+      const scoped_refptr<webrtc::VideoSourceInterface>& adapter) {
+  DCHECK(!adapter_);
+  adapter_ = adapter;
 }
 
 }  // namespace content