Rewrite CreateBlackFrame in webrtcvideoengine.
Don't use VideoFrameBuffer::MutableDataY and friends, instead, use
I420Buffer::SetToBlack.
Also introduce static method I420Buffer::Create, to create an object and
return a scoped_refptr.
TBR=marpan@webrtc.org # Trivial change to video_denoiser.cc
BUG=webrtc:5921
Review-Url: https://codereview.webrtc.org/2078943002
Cr-Original-Commit-Position: refs/heads/master@{#13212}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: ac62bd4a3b9add714566e3c2b4e92621dda92792
9 files changed