Revert of Delete unused and almost unused frame-related methods. (patchset #12 id:220001 of https://codereview.webrtc.org/2065733003/ )

Reason for revert:
Breaks downstream applications which inherits webrtc::VideoFrameBuffer and tries to override deleted methods data(), stride() and MutableData().

Original issue's description:
> Delete unused and almost unused frame-related methods.
>
> webrtc::VideoFrame::set_video_frame_buffer
> webrtc::VideoFrame::ConvertNativeToI420Frame
>
> cricket::WebRtcVideoFrame::InitToBlack
>
> VideoFrameBuffer::data
> VideoFrameBuffer::stride
> VideoFrameBuffer::MutableData
>
> TBR=tkchin@webrtc.org # Refactoring affecting RTCVideoFrame
> BUG=webrtc:5682
>
> Committed: https://crrev.com/76270de4bc2dac188f10f805e6e2fb86693ef864
> Cr-Commit-Position: refs/heads/master@{#13183}

TBR=perkj@webrtc.org,pbos@webrtc.org,marpan@webrtc.org,tkchin@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:5682

Review-Url: https://codereview.webrtc.org/2076113002
Cr-Commit-Position: refs/heads/master@{#13184}
diff --git a/webrtc/modules/video_processing/spatial_resampler.cc b/webrtc/modules/video_processing/spatial_resampler.cc
index 7c4aae2..74a570f 100644
--- a/webrtc/modules/video_processing/spatial_resampler.cc
+++ b/webrtc/modules/video_processing/spatial_resampler.cc
@@ -58,10 +58,10 @@
 
   scaled_buffer->CropAndScaleFrom(inFrame.video_frame_buffer());
 
-  *outFrame = VideoFrame(scaled_buffer,
-                         inFrame.timestamp(),
-                         inFrame.render_time_ms(),
-                         inFrame.rotation());
+  outFrame->set_video_frame_buffer(scaled_buffer);
+  // Setting time parameters to the output frame.
+  outFrame->set_timestamp(inFrame.timestamp());
+  outFrame->set_render_time_ms(inFrame.render_time_ms());
 
   return VPM_OK;
 }