Remove VideoDecoder::natural_size() & added VideoFrame::natural_size().

webkit/media/webvideoframe_impl.cc

Index: webkit/media/webvideoframe_impl.cc
diff --git a/webkit/media/webvideoframe_impl.cc b/webkit/media/webvideoframe_impl.cc
index d6e178c24cdcd433c4c6feb47d72d835bb422957..1a6bb83b5c4726f7791098f9901c522612a6614f 100644
--- a/webkit/media/webvideoframe_impl.cc
+++ b/webkit/media/webvideoframe_impl.cc
@@ -48,13 +48,13 @@ WebVideoFrame::Format WebVideoFrameImpl::format() const {
 
 unsigned WebVideoFrameImpl::width() const {
   if (video_frame_.get())
-    return video_frame_->width();
+    return video_frame_->size().width();
   return 0;
 }
 
 unsigned WebVideoFrameImpl::height() const {
   if (video_frame_.get())
-    return video_frame_->height();
+    return video_frame_->size().height();
   return 0;
 }