Added the desktop shape fields to VideoPacket.

remoting/client/frame_producer.h

Index: remoting/client/frame_producer.h
diff --git a/remoting/client/frame_producer.h b/remoting/client/frame_producer.h
index 340fbb59cf85cad9a2c77e4776d4e905a203f00b..3506e8ff297fd8ff45633e433c73940de3c1fa5c 100644
--- a/remoting/client/frame_producer.h
+++ b/remoting/client/frame_producer.h
@@ -42,6 +42,9 @@ class FrameProducer {
   virtual void SetOutputSizeAndClip(const SkISize& view_size,
                                     const SkIRect& clip_area) = 0;
 
+  // Returns a reference to the shape of the most recently drawn buffer.
+  virtual const SkRegion* GetBufferShape() = 0;
+
  protected:
   virtual ~FrameProducer() {}