Make cricket::VideoFrame inherit webrtc::VideoFrame.

webrtc/media/base/videoframe.h

Index: webrtc/media/base/videoframe.h
diff --git a/webrtc/media/base/videoframe.h b/webrtc/media/base/videoframe.h
index f61445bfe75948c4e965d72eae2caee91cf26a40..5684e3df6b98db55cb154ca9db4274eb68cbd8c8 100644
--- a/webrtc/media/base/videoframe.h
+++ b/webrtc/media/base/videoframe.h
@@ -11,13 +11,19 @@
 #ifndef WEBRTC_MEDIA_BASE_VIDEOFRAME_H_
 #define WEBRTC_MEDIA_BASE_VIDEOFRAME_H_
 
+#include "webrtc/video_frame.h"
+
+#if 0
 #include "webrtc/base/basictypes.h"
 #include "webrtc/base/stream.h"
 #include "webrtc/common_video/include/video_frame_buffer.h"
 #include "webrtc/common_video/rotation.h"
+#endif
 
 namespace cricket {
 
+using VideoFrame = webrtc::VideoFrame;
+#if 0
 // Represents a YUV420 (a.k.a. I420) video frame.
 
 // TODO(nisse): This class duplicates webrtc::VideoFrame. There's
@@ -67,6 +73,7 @@ class VideoFrame {
                        const uint8_t* sample,
                        size_t sample_size);
 };
+#endif
 
 }  // namespace cricket