Index: content/renderer/media/media_stream_source_observer.h |
diff --git a/content/renderer/media/media_stream_source_observer.h b/content/renderer/media/media_stream_source_observer.h |
new file mode 100644 |
index 0000000000000000000000000000000000000000..3ddd9e5f1b688e0af3366285e97b4c2b16f91566 |
--- /dev/null |
+++ b/content/renderer/media/media_stream_source_observer.h |
@@ -0,0 +1,49 @@ |
+// Copyright (c) 2013 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_SOURCE_OBSERVER_H_ |
+#define CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_ |
+ |
+#include "base/compiler_specific.h" |
+#include "base/memory/ref_counted.h" |
+#include "base/threading/non_thread_safe.h" |
+#include "content/common/content_export.h" |
+#include "third_party/libjingle/source/talk/app/webrtc/mediastreaminterface.h" |
+#include "third_party/WebKit/Source/Platform/chromium/public/WebMediaStreamSource.h" |
+ |
+namespace content { |
+ |
+// MediaStreamSourceObserver listens to events on MediaSourceInterface and |
+// notify WebKit. It will be owned by MediaStreamSourceExtraData. |
+// |
+// This will create circular reference to MediaStreamSource: |
+// MediaStreamSource -> MediaStreamSourceExtraData -> MediaStreamSourceObserver |
+// -> MediaStreamSource |
+// Currently, it relies on manually releasing the reference count, like what |
+// ~UserMediaRequestInfo() does. |
+// TODO(kcwu): fix the circular reference after ExtraData::Owner() is |
+// implemented, which let us get MediaStreamSource without increasing reference |
+// count. |
+class CONTENT_EXPORT MediaStreamSourceObserver |
+ : NON_EXPORTED_BASE(public webrtc::ObserverInterface), |
+ NON_EXPORTED_BASE(public base::NonThreadSafe) { |
+ public: |
+ MediaStreamSourceObserver(webrtc::MediaSourceInterface* webrtc_source, |
+ const WebKit::WebMediaStreamSource& webkit_source); |
perkj_chrome
2013/04/18 13:36:20
How about preparing for ExtraData::Owner() ?
c
|
+ virtual ~MediaStreamSourceObserver(); |
+ |
+ // webrtc::ObserverInterface implementation. |
+ virtual void OnChanged() OVERRIDE; |
+ |
+ private: |
+ webrtc::MediaSourceInterface::SourceState state_; |
+ scoped_refptr<webrtc::MediaSourceInterface> webrtc_source_; |
+ WebKit::WebMediaStreamSource webkit_source_; |
+ |
+ DISALLOW_COPY_AND_ASSIGN(MediaStreamSourceObserver); |
+}; |
+ |
+} // namespace content |
+ |
+#endif // CONTENT_RENDERER_MEDIA_MEDIA_STREAM_SOURCE_OBSERVER_H_ |