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

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

Index: webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
diff --git a/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc b/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
index 766e517484671a4e1cfa7ac0c7f9621a91f7ea6e..1c8037a60e9ce4657a146cd0ba888798e416ac40 100644
--- a/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
+++ b/webrtc/modules/video_coding/codecs/vp8/simulcast_encoder_adapter.cc
@@ -298,11 +298,10 @@ int SimulcastEncoderAdapter::Encode(
         return ret;
       }
     } else {
-      VideoFrame dst_frame;
-      // Making sure that destination frame is of sufficient size.
       // Aligning stride values based on width.
-      dst_frame.CreateEmptyFrame(dst_width, dst_height, dst_width,
-                                 (dst_width + 1) / 2, (dst_width + 1) / 2);
+      rtc::scoped_refptr<I420Buffer> dst_buffer =
+          I420Buffer::Create(dst_width, dst_height, dst_width,
+                             (dst_width + 1) / 2, (dst_width + 1) / 2);
       libyuv::I420Scale(input_image.video_frame_buffer()->DataY(),
                         input_image.video_frame_buffer()->StrideY(),
                         input_image.video_frame_buffer()->DataU(),
@@ -310,18 +309,16 @@ int SimulcastEncoderAdapter::Encode(
                         input_image.video_frame_buffer()->DataV(),
                         input_image.video_frame_buffer()->StrideV(),
                         src_width, src_height,
-                        dst_frame.video_frame_buffer()->MutableDataY(),
-                        dst_frame.video_frame_buffer()->StrideY(),
-                        dst_frame.video_frame_buffer()->MutableDataU(),
-                        dst_frame.video_frame_buffer()->StrideU(),
-                        dst_frame.video_frame_buffer()->MutableDataV(),
-                        dst_frame.video_frame_buffer()->StrideV(),
+                        dst_buffer->MutableDataY(), dst_buffer->StrideY(),
+                        dst_buffer->MutableDataU(), dst_buffer->StrideU(),
+                        dst_buffer->MutableDataV(), dst_buffer->StrideV(),
                         dst_width, dst_height,
                         libyuv::kFilterBilinear);
-      dst_frame.set_timestamp(input_image.timestamp());
-      dst_frame.set_render_time_ms(input_image.render_time_ms());
+
       int ret = streaminfos_[stream_idx].encoder->Encode(
-          dst_frame, codec_specific_info, &stream_frame_types);
+          VideoFrame(dst_buffer, input_image.timestamp(),
+                     input_image.render_time_ms(), webrtc::kVideoRotation_0),
+          codec_specific_info, &stream_frame_types);
       if (ret != WEBRTC_VIDEO_CODEC_OK) {
         return ret;
       }