Replace RectVectors with SkRegions in Decoder.

remoting/client/frame_consumer_proxy.cc

Index: remoting/client/frame_consumer_proxy.cc
diff --git a/remoting/client/frame_consumer_proxy.cc b/remoting/client/frame_consumer_proxy.cc
index 3f7890af3d9a84f98592506ead6fa40f3f863773..fcf1f0e6d2366b291317ab19a330f060a822a5ed 100644
--- a/remoting/client/frame_consumer_proxy.cc
+++ b/remoting/client/frame_consumer_proxy.cc
@@ -48,17 +48,17 @@ void FrameConsumerProxy::ReleaseFrame(media::VideoFrame* frame) {
 }
 
 void FrameConsumerProxy::OnPartialFrameOutput(media::VideoFrame* frame,
-                                              RectVector* rects,
+                                              SkRegion* region,
                                               const base::Closure& done) {
   if (!frame_consumer_message_loop_->BelongsToCurrentThread()) {
     frame_consumer_message_loop_->PostTask(FROM_HERE, base::Bind(
         &FrameConsumerProxy::OnPartialFrameOutput, this,
-        make_scoped_refptr(frame), rects, done));
+        make_scoped_refptr(frame), region, done));
     return;
   }
 
   if (frame_consumer_)
-    frame_consumer_->OnPartialFrameOutput(frame, rects, done);
+    frame_consumer_->OnPartialFrameOutput(frame, region, done);
 }
 
 void FrameConsumerProxy::Detach() {