Re-land "Convert native handles to buffers before encoding."

webrtc/common_video/video_frame.cc

Index: webrtc/common_video/video_frame.cc
diff --git a/webrtc/common_video/video_frame.cc b/webrtc/common_video/video_frame.cc
index 9c127602df0b08a0ea98ff66dbbd23a30ba29101..208a31b618f1b52f3d941c844246994d1432b106 100644
--- a/webrtc/common_video/video_frame.cc
+++ b/webrtc/common_video/video_frame.cc
@@ -36,22 +36,6 @@ VideoFrame::VideoFrame(const rtc::scoped_refptr<VideoFrameBuffer>& buffer,
       rotation_(rotation) {
 }
 
-VideoFrame::VideoFrame(void* native_handle,
-                       int width,
-                       int height,
-                       uint32_t timestamp,
-                       int64_t render_time_ms,
-                       VideoRotation rotation,
-                       const rtc::Callback0<void>& no_longer_used)
-    : VideoFrame(new rtc::RefCountedObject<TextureBuffer>(native_handle,
-                                                          width,
-                                                          height,
-                                                          no_longer_used),
-                 timestamp,
-                 render_time_ms,
-                 rotation) {
-}
-
 int VideoFrame::CreateEmptyFrame(int width,
                                  int height,
                                  int stride_y,
@@ -211,4 +195,12 @@ void VideoFrame::set_video_frame_buffer(
   video_frame_buffer_ = buffer;
 }
 
+VideoFrame VideoFrame::ConvertNativeToI420Frame() const {
+  DCHECK(native_handle());
+  VideoFrame frame;
+  frame.ShallowCopy(*this);
+  frame.set_video_frame_buffer(video_frame_buffer_->NativeToI420Buffer());
+  return frame;
+}
+
 }  // namespace webrtc