Make cricket::VideoCapturer implement VideoSourceInterface

talk/media/base/videocapturer.h

Index: talk/media/base/videocapturer.h
diff --git a/talk/media/base/videocapturer.h b/talk/media/base/videocapturer.h
index a13c201b8b308d0008d3448e87141ae2640599bd..37d137add45314deb8907638fd46ec63b6224354 100644
--- a/talk/media/base/videocapturer.h
+++ b/talk/media/base/videocapturer.h
@@ -41,6 +41,7 @@
 #include "talk/media/devices/devicemanager.h"
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/criticalsection.h"
+#include "webrtc/media/base/videosourceinterface.h"
 #include "webrtc/base/messagehandler.h"
 #include "webrtc/base/rollingaccumulator.h"
 #include "webrtc/base/scoped_ptr.h"
@@ -127,7 +128,8 @@ struct CapturedFrame {
 //
 class VideoCapturer
     : public sigslot::has_slots<>,
-      public rtc::MessageHandler {
+      public rtc::MessageHandler,
+      public rtc::VideoSourceBase<cricket::VideoFrame> {
  public:
   // All signals are marshalled to |thread| or the creating thread if
   // none is provided.
@@ -257,6 +259,7 @@ class VideoCapturer
   // Signal the captured frame to downstream.
   sigslot::signal2<VideoCapturer*, const CapturedFrame*,
                    sigslot::multi_threaded_local> SignalFrameCaptured;
+
   // Signal the captured and possibly adapted frame to downstream consumers
   // such as the encoder.
   sigslot::signal2<VideoCapturer*, const VideoFrame*,