diff -r 000000000000 -r 6474c204b198 content/media/webrtc/MediaEngineTabVideoSource.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/content/media/webrtc/MediaEngineTabVideoSource.h	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,66 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "nsIDOMEventListener.h"
+#include "MediaEngine.h"
+#include "ImageContainer.h"
+#include "nsITimer.h"
+#include "mozilla/Monitor.h"
+#include "nsITabSource.h"
+
+namespace mozilla {
+
+class MediaEngineTabVideoSource : public MediaEngineVideoSource, nsIDOMEventListener, nsITimerCallback {
+  public:
+    NS_DECL_THREADSAFE_ISUPPORTS
+    NS_DECL_NSIDOMEVENTLISTENER
+    NS_DECL_NSITIMERCALLBACK
+    MediaEngineTabVideoSource();
+
+    virtual void GetName(nsAString_internal&);
+    virtual void GetUUID(nsAString_internal&);
+    virtual nsresult Allocate(const VideoTrackConstraintsN &,
+                              const mozilla::MediaEnginePrefs&);
+    virtual nsresult Deallocate();
+    virtual nsresult Start(mozilla::SourceMediaStream*, mozilla::TrackID);
+    virtual nsresult Snapshot(uint32_t, nsIDOMFile**);
+    virtual void NotifyPull(mozilla::MediaStreamGraph*, mozilla::SourceMediaStream*, mozilla::TrackID, mozilla::StreamTime, mozilla::TrackTicks&);
+    virtual nsresult Stop(mozilla::SourceMediaStream*, mozilla::TrackID);
+    virtual nsresult Config(bool, uint32_t, bool, uint32_t, bool, uint32_t, int32_t);
+    virtual bool IsFake();
+    void Draw();
+
+    class StartRunnable : public nsRunnable {
+    public:
+      StartRunnable(MediaEngineTabVideoSource *videoSource) : mVideoSource(videoSource) {}
+      NS_IMETHOD Run();
+      nsRefPtr<MediaEngineTabVideoSource> mVideoSource;
+    };
+
+    class StopRunnable : public nsRunnable {
+    public:
+    StopRunnable(MediaEngineTabVideoSource *videoSource) : mVideoSource(videoSource) {}
+      NS_IMETHOD Run();
+      nsRefPtr<MediaEngineTabVideoSource> mVideoSource;
+    };
+
+    class InitRunnable : public nsRunnable {
+    public:
+    InitRunnable(MediaEngineTabVideoSource *videoSource) : mVideoSource(videoSource) {}
+      NS_IMETHOD Run();
+      nsRefPtr<MediaEngineTabVideoSource> mVideoSource;
+    };
+
+private:
+    int mBufW;
+    int mBufH;
+    int mTimePerFrame;
+    ScopedFreePtr<unsigned char> mData;
+    nsCOMPtr<nsIDOMWindow> mWindow;
+    nsRefPtr<layers::CairoImage> mImage;
+    nsCOMPtr<nsITimer> mTimer;
+    Monitor mMonitor;
+    nsCOMPtr<nsITabSource> mTabSource;
+  };
+}