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

media/base/video_util_unittest.cc

Index: media/base/video_util_unittest.cc
diff --git a/media/base/video_util_unittest.cc b/media/base/video_util_unittest.cc
index 301566cfe42738c8fc534a901da2b1f1803b4631..326907df51c7e324894f62cb5a14554b3fb1d6a0 100644
--- a/media/base/video_util_unittest.cc
+++ b/media/base/video_util_unittest.cc
@@ -37,8 +37,9 @@ class VideoUtilTest : public testing::Test {
   }
 
   void CreateDestinationFrame(int width, int height) {
+    gfx::Size size(width, height);
     destination_frame_ =
-        VideoFrame::CreateFrame(VideoFrame::YV12, width, height,
+        VideoFrame::CreateFrame(VideoFrame::YV12, size, size,
                                 base::TimeDelta());
   }