Revert of Move MutableDataY{,U,V} methods to I420Buffer only.

webrtc/modules/video_coding/codecs/vp8/vp8_sequence_coder.cc

 /*
  *  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 130 matching lines @@
   inst.startBitrate = target_bitrate;
   inst.maxBitrate = 8000;
   inst.width = width;
   inst.height = height;
 
   if (encoder->InitEncode(&inst, 1, 1440) < 0) {
     fprintf(stderr, "Error: Cannot initialize vp8 encoder\n");
     return -1;
   }
   EXPECT_EQ(0, decoder->InitDecode(&inst, 1));
-
+  webrtc::VideoFrame input_frame;
   size_t length = webrtc::CalcBufferSize(webrtc::kI420, width, height);
   std::unique_ptr<uint8_t[]> frame_buffer(new uint8_t[length]);
 
   int half_width = (width + 1) / 2;
   // Set and register callbacks.
   Vp8SequenceCoderEncodeCallback encoder_callback(encoded_file);
   encoder->RegisterEncodeCompleteCallback(&encoder_callback);
   Vp8SequenceCoderDecodeCallback decoder_callback(output_file);
   decoder->RegisterDecodeCompleteCallback(&decoder_callback);
   // Read->Encode->Decode sequence.
   // num_frames = -1 implies unlimited encoding (entire sequence).
   int64_t starttime = rtc::TimeMillis();
   int frame_cnt = 1;
   int frames_processed = 0;
-  rtc::scoped_refptr<webrtc::I420Buffer> i420_buffer =
-      webrtc::I420Buffer::Create(width, height, width, half_width, half_width);
-
+  input_frame.CreateEmptyFrame(width, height, width, half_width, half_width);
   while (!feof(input_file) &&
          (num_frames == -1 || frames_processed < num_frames)) {
     if (fread(frame_buffer.get(), 1, length, input_file) != length)
       continue;
     if (frame_cnt >= start_frame) {
       webrtc::ConvertToI420(webrtc::kI420, frame_buffer.get(), 0, 0, width,
-                            height, 0, webrtc::kVideoRotation_0, &i420_buffer);
-      webrtc::VideoFrame input_frame(i420_buffer, 0, 0,
-                                     webrtc::kVideoRotation_0);
+                            height, 0, webrtc::kVideoRotation_0, &input_frame);
       encoder->Encode(input_frame, NULL, NULL);
       decoder->Decode(encoder_callback.encoded_image(), false, NULL);
       ++frames_processed;
     }
     ++frame_cnt;
   }
   printf("\nProcessed %d frames\n", frames_processed);
   int64_t endtime = rtc::TimeMillis();
   int64_t totalExecutionTime = endtime - starttime;
   printf("Total execution time: %.2lf ms\n",
@@ skipping 55 matching lines @@
 
   parser.ProcessFlags();
   if (parser.GetFlag("help") == "true") {
     parser.PrintUsageMessage();
     exit(EXIT_SUCCESS);
   }
   parser.PrintEnteredFlags();
 
   return SequenceCoder(&parser);
 }