Delete webrtc::VideoFrame methods buffer and stride.

webrtc/modules/video_render/ios/open_gles20.mm

 /*
  *  Copyright (c) 2012 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 298 matching lines @@
     }
   }
 }
 
 void OpenGles20::UpdateTextures(const VideoFrame& frame) {
   const GLsizei width = frame.width();
   const GLsizei height = frame.height();
 
   glActiveTexture(GL_TEXTURE0);
   glBindTexture(GL_TEXTURE_2D, texture_ids_[0]);
-  GlTexSubImage2D(width, height, frame.stride(kYPlane), frame.buffer(kYPlane));
+  GlTexSubImage2D(width, height,
+                  frame.video_frame_buffer()->StrideY(),
+                  frame.video_frame_buffer()->DataY());
 
   glActiveTexture(GL_TEXTURE1);
   glBindTexture(GL_TEXTURE_2D, texture_ids_[1]);
-  GlTexSubImage2D(
-      width / 2, height / 2, frame.stride(kUPlane), frame.buffer(kUPlane));
+  GlTexSubImage2D(width / 2, height / 2,
+                  frame.video_frame_buffer()->StrideU(),
+                  frame.video_frame_buffer()->DataU());
 
   glActiveTexture(GL_TEXTURE2);
   glBindTexture(GL_TEXTURE_2D, texture_ids_[2]);
-  GlTexSubImage2D(
-      width / 2, height / 2, frame.stride(kVPlane), frame.buffer(kVPlane));
+  GlTexSubImage2D(width / 2, height / 2,
+                  frame.video_frame_buffer()->StrideV(),
+                  frame.video_frame_buffer()->DataV());
 }