Added the desktop shape fields to VideoPacket.

remoting/client/rectangle_update_decoder.cc

Index: remoting/client/rectangle_update_decoder.cc
diff --git a/remoting/client/rectangle_update_decoder.cc b/remoting/client/rectangle_update_decoder.cc
index 4f301ceeccfbb9279f9dad799571894627ffa12a..6c2f61b196bf47ffb95adf76606f97c7eafb8504 100644
--- a/remoting/client/rectangle_update_decoder.cc
+++ b/remoting/client/rectangle_update_decoder.cc
@@ -222,6 +222,10 @@ void RectangleUpdateDecoder::SetOutputSizeAndClip(const SkISize& view_size,
   }
 }
 
+const SkRegion* RectangleUpdateDecoder::GetBufferShape() {
+  return decoder_->GetImageShape();
+}
+
 void RectangleUpdateDecoder::ProcessVideoPacket(scoped_ptr<VideoPacket> packet,
                                                 const base::Closure& done) {
   DCHECK(main_task_runner_->BelongsToCurrentThread());