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

webrtc/media/engine/webrtcvideoengine2.cc

Index: webrtc/media/engine/webrtcvideoengine2.cc
diff --git a/webrtc/media/engine/webrtcvideoengine2.cc b/webrtc/media/engine/webrtcvideoengine2.cc
index 9f74a86a8480a1ec7b47948090a875ed2ce6a537..462174c74348ff2267c5146e274e69e1055b0bcc 100644
--- a/webrtc/media/engine/webrtcvideoengine2.cc
+++ b/webrtc/media/engine/webrtcvideoengine2.cc
@@ -1583,8 +1583,8 @@ void WebRtcVideoChannel2::WebRtcVideoSendStream::OnFrame(
   if (muted_) {
     // Create a black frame to transmit instead.
     CreateBlackFrame(&video_frame,
-                     static_cast<int>(frame.GetWidth()),
-                     static_cast<int>(frame.GetHeight()),
+                     frame.width(),
+                     frame.height(),
                      video_frame.rotation());
   }