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

webrtc/api/objc/RTCVideoFrame.mm

 /*
  *  Copyright 2015 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.
  */
 
 #import "RTCVideoFrame.h"
 
 #include "webrtc/base/scoped_ptr.h"
 
 #import "webrtc/api/objc/RTCVideoFrame+Private.h"
 
 @implementation RTCVideoFrame {
   rtc::scoped_ptr<cricket::VideoFrame> _videoFrame;
 }
 
 - (size_t)width {
-  return _videoFrame->GetWidth();
+  return _videoFrame->width();
 }
 
 - (size_t)height {
-  return _videoFrame->GetHeight();
+  return _videoFrame->height();
 }
 
+// TODO(nisse): chromaWidth and chromaHeight are used only in
+// RTCOpenGLVideoRenderer.mm. Update, and then delete these
+// properties.
 - (size_t)chromaWidth {
-  return _videoFrame->GetChromaWidth();
+  return (self.width + 1) / 2;
 }
 
 - (size_t)chromaHeight {
-  return _videoFrame->GetChromaHeight();
-}
-
-- (size_t)chromaSize {
-  return _videoFrame->GetChromaSize();
+  return (self.height + 1) / 2;
 }
 
 - (const uint8_t *)yPlane {
   const cricket::VideoFrame *const_frame = _videoFrame.get();
   return const_frame->GetYPlane();
 }
 
 - (const uint8_t *)uPlane {
   const cricket::VideoFrame *const_frame = _videoFrame.get();
   return const_frame->GetUPlane();
@@ skipping 21 matching lines @@
 - (instancetype)initWithNativeFrame:(const cricket::VideoFrame *)nativeFrame {
   if (self = [super init]) {
     // Keep a shallow copy of the video frame. The underlying frame buffer is
     // not copied.
     _videoFrame.reset(nativeFrame->Copy());
   }
   return self;
 }
 
 @end