Adds MediaStreamSource, MediaStreamAudioSource and MediaStreamVideoCaptureDeviceSource

content/renderer/media/media_stream_video_capturer_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_capturer_source.h"
+
+#include "base/bind.h"
+#include "base/debug/trace_event.h"
+#include "content/renderer/media/rtc_media_constraints.h"
+#include "content/renderer/media/rtc_video_capturer.h"
+
+namespace content {
+
+MediaStreamVideoCapturerSource::MediaStreamVideoCapturerSource(
+    const StreamDeviceInfo& device_info,
+    const SourceStoppedCallback& stop_callback,
+    MediaStreamDependencyFactory* factory)
+    : MediaStreamVideoSource(factory) {
+  SetDeviceInfo(device_info);
+  SetStopCallback(stop_callback);
+}
+
+MediaStreamVideoCapturerSource::~MediaStreamVideoCapturerSource() {
+}
+
+void MediaStreamVideoCapturerSource::InitAdapter(
+    const blink::WebMediaConstraints& constraints) {
+  // Create the webrtc::VideoSource implementation.
+  RTCMediaConstraints webrtc_constraints(constraints);
+  cricket::VideoCapturer* capturer =
+      factory()->CreateVideoCapturer(device_info());
+  SetAdapter(factory()->CreateVideoSource(capturer,
+                                          &webrtc_constraints));
+}
+
+}  // namespace content