Revert of Delete cricket::VideoFrame methods GetYPlane and GetYPitch.

webrtc/media/base/videobroadcaster_unittest.cc

 /*
  *  Copyright 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 119 matching lines @@
   broadcaster.AddOrUpdateSink(&sink1, wants1);
 
   FakeVideoRenderer sink2;
   VideoSinkWants wants2;
   wants1.black_frames = false;
   broadcaster.AddOrUpdateSink(&sink2, wants2);
 
   cricket::WebRtcVideoFrame frame1;
   frame1.InitToBlack(100, 200, 10000 /*ts*/);
   // Make it not all-black
-  frame1.video_frame_buffer()->MutableDataU()[0] = 0;
+  frame1.GetUPlane()[0] = 0;
   broadcaster.OnFrame(frame1);
   EXPECT_TRUE(sink1.black_frame());
   EXPECT_EQ(10000, sink1.timestamp());
   EXPECT_FALSE(sink2.black_frame());
   EXPECT_EQ(10000, sink2.timestamp());
 
   // Switch the sink wants.
   wants1.black_frames = false;
   broadcaster.AddOrUpdateSink(&sink1, wants1);
   wants2.black_frames = true;
   broadcaster.AddOrUpdateSink(&sink2, wants2);
 
   cricket::WebRtcVideoFrame frame2;
   frame2.InitToBlack(100, 200, 30000 /*ts*/);
   // Make it not all-black
-  frame2.video_frame_buffer()->MutableDataU()[0] = 0;
+  frame2.GetUPlane()[0] = 0;
   broadcaster.OnFrame(frame2);
   EXPECT_FALSE(sink1.black_frame());
   EXPECT_EQ(30000, sink1.timestamp());
   EXPECT_TRUE(sink2.black_frame());
   EXPECT_EQ(30000, sink2.timestamp());
 }