Pass GpuMemoryBuffer backed VideoFrame from browser to renderer processes

media/capture/video/video_capture_device.h

Index: media/capture/video/video_capture_device.h
diff --git a/media/capture/video/video_capture_device.h b/media/capture/video/video_capture_device.h
index 2f806d0c9af3765699e59b3f2560e81fbe5e6549..bc7dd38eb64f27b03384c30a1be768f563d3f121 100644
--- a/media/capture/video/video_capture_device.h
+++ b/media/capture/video/video_capture_device.h
@@ -181,7 +181,8 @@ class MEDIA_EXPORT VideoCaptureDevice {
      public:
       virtual ~Buffer() = 0;
       virtual int id() const = 0;
-      virtual size_t size() const = 0;
+      virtual gfx::Size dimensions() const = 0;
+      virtual size_t mapped_size() const = 0;
       virtual void* data(int plane) = 0;
       void* data() { return data(0); }
       virtual ClientBuffer AsClientBuffer(int plane) = 0;