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

webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.cc

Index: webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.cc
diff --git a/webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.cc b/webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.cc
index f560a37d0ece018524675795dbc49e17e867ed69..e98666d073695016e89a48600ae863d53a768a87 100644
--- a/webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.cc
+++ b/webrtc/modules/video_coding/codecs/h264/h264_decoder_impl.cc
@@ -129,12 +129,10 @@
   video_frame->set_video_frame_buffer(
       decoder->pool_.CreateBuffer(width, height));
   // DCHECK that we have a continuous buffer as is required.
-  RTC_DCHECK_EQ(video_frame->video_frame_buffer()->DataU(),
-                video_frame->video_frame_buffer()->DataY() +
-                video_frame->allocated_size(kYPlane));
-  RTC_DCHECK_EQ(video_frame->video_frame_buffer()->DataV(),
-                video_frame->video_frame_buffer()->DataU() +
-                video_frame->allocated_size(kUPlane));
+  RTC_DCHECK_EQ(video_frame->buffer(kUPlane),
+      video_frame->buffer(kYPlane) + video_frame->allocated_size(kYPlane));
+  RTC_DCHECK_EQ(video_frame->buffer(kVPlane),
+      video_frame->buffer(kUPlane) + video_frame->allocated_size(kUPlane));
   int total_size = video_frame->allocated_size(kYPlane) +
                    video_frame->allocated_size(kUPlane) +
                    video_frame->allocated_size(kVPlane);
@@ -143,18 +141,12 @@
   av_frame->reordered_opaque = context->reordered_opaque;
 
   // Set |av_frame| members as required by FFmpeg.
-  av_frame->data[kYPlaneIndex] =
-      video_frame->video_frame_buffer()->MutableDataY();
-  av_frame->linesize[kYPlaneIndex] =
-      video_frame->video_frame_buffer()->StrideY();
-  av_frame->data[kUPlaneIndex] =
-      video_frame->video_frame_buffer()->MutableDataU();
-  av_frame->linesize[kUPlaneIndex] =
-      video_frame->video_frame_buffer()->StrideU();
-  av_frame->data[kVPlaneIndex] =
-      video_frame->video_frame_buffer()->MutableDataV();
-  av_frame->linesize[kVPlaneIndex] =
-      video_frame->video_frame_buffer()->StrideV();
+  av_frame->data[kYPlaneIndex] = video_frame->buffer(kYPlane);
+  av_frame->linesize[kYPlaneIndex] = video_frame->stride(kYPlane);
+  av_frame->data[kUPlaneIndex] = video_frame->buffer(kUPlane);
+  av_frame->linesize[kUPlaneIndex] = video_frame->stride(kUPlane);
+  av_frame->data[kVPlaneIndex] = video_frame->buffer(kVPlane);
+  av_frame->linesize[kVPlaneIndex] = video_frame->stride(kVPlane);
   RTC_DCHECK_EQ(av_frame->extended_data, av_frame->data);
 
   av_frame->buf[0] = av_buffer_create(av_frame->data[kYPlaneIndex],
@@ -347,12 +339,9 @@
   VideoFrame* video_frame = static_cast<VideoFrame*>(
       av_buffer_get_opaque(av_frame_->buf[0]));
   RTC_DCHECK(video_frame);
-  RTC_CHECK_EQ(av_frame_->data[kYPlane],
-               video_frame->video_frame_buffer()->DataY());
-  RTC_CHECK_EQ(av_frame_->data[kUPlane],
-               video_frame->video_frame_buffer()->DataU());
-  RTC_CHECK_EQ(av_frame_->data[kVPlane],
-               video_frame->video_frame_buffer()->DataV());
+  RTC_CHECK_EQ(av_frame_->data[kYPlane], video_frame->buffer(kYPlane));
+  RTC_CHECK_EQ(av_frame_->data[kUPlane], video_frame->buffer(kUPlane));
+  RTC_CHECK_EQ(av_frame_->data[kVPlane], video_frame->buffer(kVPlane));
   video_frame->set_timestamp(input_image._timeStamp);
 
   // The decoded image may be larger than what is supposed to be visible, see
@@ -363,9 +352,9 @@
     video_frame->set_video_frame_buffer(
         new rtc::RefCountedObject<WrappedI420Buffer>(
             av_frame_->width, av_frame_->height,
-            buf->DataY(), buf->StrideY(),
-            buf->DataU(), buf->StrideU(),
-            buf->DataV(), buf->StrideV(),
+            buf->data(kYPlane), buf->stride(kYPlane),
+            buf->data(kUPlane), buf->stride(kUPlane),
+            buf->data(kVPlane), buf->stride(kVPlane),
             rtc::KeepRefUntilDone(buf)));
   }