Revert of Delete webrtc::VideoFrame methods buffer and stride.

webrtc/modules/video_coding/codecs/h264/h264_encoder_impl.cc

 /*
  *  Copyright (c) 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.
  *
  */
@@ skipping 349 matching lines @@
     openh264_encoder_->ForceIntraFrame(true);
   }
 
   // EncodeFrame input.
   SSourcePicture picture;
   memset(&picture, 0, sizeof(SSourcePicture));
   picture.iPicWidth = frame.width();
   picture.iPicHeight = frame.height();
   picture.iColorFormat = EVideoFormatType::videoFormatI420;
   picture.uiTimeStamp = frame.ntp_time_ms();
-  picture.iStride[0] = frame.video_frame_buffer()->StrideY();
-  picture.iStride[1] = frame.video_frame_buffer()->StrideU();
-  picture.iStride[2] = frame.video_frame_buffer()->StrideV();
-  picture.pData[0] = const_cast<uint8_t*>(frame.video_frame_buffer()->DataY());
-  picture.pData[1] = const_cast<uint8_t*>(frame.video_frame_buffer()->DataU());
-  picture.pData[2] = const_cast<uint8_t*>(frame.video_frame_buffer()->DataV());
+  picture.iStride[0] = frame.stride(kYPlane);
+  picture.iStride[1] = frame.stride(kUPlane);
+  picture.iStride[2] = frame.stride(kVPlane);
+  picture.pData[0] = const_cast<uint8_t*>(frame.buffer(kYPlane));
+  picture.pData[1] = const_cast<uint8_t*>(frame.buffer(kUPlane));
+  picture.pData[2] = const_cast<uint8_t*>(frame.buffer(kVPlane));
 
   // EncodeFrame output.
   SFrameBSInfo info;
   memset(&info, 0, sizeof(SFrameBSInfo));
 
   // Encode!
   int enc_ret = openh264_encoder_->EncodeFrame(&picture, &info);
   if (enc_ret != 0) {
     LOG(LS_ERROR) << "OpenH264 frame encoding failed, EncodeFrame returned "
                   << enc_ret << ".";
@@ skipping 55 matching lines @@
 }
 
 int32_t H264EncoderImpl::SetPeriodicKeyFrames(bool enable) {
   return WEBRTC_VIDEO_CODEC_OK;
 }
 
 void H264EncoderImpl::OnDroppedFrame() {
 }
 
 }  // namespace webrtc