cricket::VideoFrame cleanup. New width() and height(). Deleted GetChroma* methods.

webrtc/media/base/videobroadcaster.cc

 /*
  *  Copyright (c) 2016 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 78 matching lines @@
 
   if (wants.max_pixel_count && wants.max_pixel_count_step_up &&
       *wants.max_pixel_count_step_up >= *wants.max_pixel_count) {
     wants.max_pixel_count_step_up = Optional<int>();
   }
   current_wants_ = wants;
 }
 
 const cricket::VideoFrame& VideoBroadcaster::GetBlackFrame(
     const cricket::VideoFrame& frame) {
-  if (black_frame_ && black_frame_->GetWidth() == frame.GetWidth() &&
-      black_frame_->GetHeight() == frame.GetHeight() &&
+  if (black_frame_ && black_frame_->width() == frame.width() &&
+      black_frame_->height() == frame.height() &&
       black_frame_->GetVideoRotation() == frame.GetVideoRotation()) {
     black_frame_->SetTimeStamp(frame.GetTimeStamp());
     return *black_frame_;
   }
   black_frame_.reset(new cricket::WebRtcVideoFrame(
       new rtc::RefCountedObject<webrtc::I420Buffer>(
-          static_cast<int>(frame.GetWidth()),
-          static_cast<int>(frame.GetHeight())),
+          frame.width(), frame.height()),
       frame.GetTimeStamp(), frame.GetVideoRotation()));
   black_frame_->SetToBlack();
   return *black_frame_;
 }
 
 }  // namespace rtc