Reland r101418: Fix aspect ratio and clarify video frame dimensions

media/tools/player_wtl/wtl_renderer.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "media/tools/player_wtl/wtl_renderer.h"
 
 #include "media/tools/player_wtl/view.h"
 
 WtlVideoRenderer::WtlVideoRenderer(WtlVideoWindow* window)
     : window_(window) {
 }
 
 WtlVideoRenderer::~WtlVideoRenderer() {}
 
 bool WtlVideoRenderer::OnInitialize(media::VideoDecoder* decoder) {
-  window_->SetSize(decoder->width(), decoder->height());
+  window_->SetSize(
+      decoder->natural_size().width(), decoder->natural_size().height());
   return true;
 }
 
 void WtlVideoRenderer::OnStop(media::FilterCallback* callback) {
   if (callback) {
     callback->Run();
     delete callback;
   }
 }
 
 void WtlVideoRenderer::OnFrameAvailable() {
   window_->Invalidate();
 }