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

webrtc/api/objc/RTCVideoFrame.mm

Index: webrtc/api/objc/RTCVideoFrame.mm
diff --git a/webrtc/api/objc/RTCVideoFrame.mm b/webrtc/api/objc/RTCVideoFrame.mm
index db2d07ba31a82a1e8371529cc5ff22592a42034e..843db273a8c6253416008352079186be03c2cf4a 100644
--- a/webrtc/api/objc/RTCVideoFrame.mm
+++ b/webrtc/api/objc/RTCVideoFrame.mm
@@ -19,23 +19,23 @@
 }
 
 - (size_t)width {
-  return _videoFrame->GetWidth();
+  return _videoFrame->width();
 }
 
 - (size_t)height {
-  return _videoFrame->GetHeight();
+  return _videoFrame->height();
 }
 
 - (size_t)chromaWidth {
-  return _videoFrame->GetChromaWidth();
+  return ([self width] + 1) / 2;

[tkchin_webrtc, 2016/03/30 17:35:06]

ditto

 }
 
 - (size_t)chromaHeight {
-  return _videoFrame->GetChromaHeight();
+  return ([self height] + 1) / 2;
 }
 
 - (size_t)chromaSize {
-  return _videoFrame->GetChromaSize();
+  return [self chromaWidth] * [self chromaHeight];
 }
 
 - (const uint8_t *)yPlane {