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

media/tools/shader_bench/shader_bench.cc

Index: media/tools/shader_bench/shader_bench.cc
diff --git a/media/tools/shader_bench/shader_bench.cc b/media/tools/shader_bench/shader_bench.cc
index 30a548fd86889d1fd6821d608d806145c4b45463..17a45a428e7daa97aec1b38b13125c510f00d8b1 100644
--- a/media/tools/shader_bench/shader_bench.cc
+++ b/media/tools/shader_bench/shader_bench.cc
@@ -50,11 +50,10 @@ void GetFrames(std::string file_name,
 
   long frame_size = CalculateYUVFrameSize(file_handle, num_frames);
 
+  gfx::Size size(width, height);
   for (int i = 0; i < num_frames; i++) {
     scoped_refptr<media::VideoFrame> video_frame =
-        media::VideoFrame::CreateFrame(media::VideoFrame::YV12,
-                                       width,
-                                       height,
+        media::VideoFrame::CreateFrame(media::VideoFrame::YV12, size, size,
                                        base::TimeDelta());
     long bytes_read =
         fread(video_frame->data(0), 1, frame_size, file_handle);