836f60cda1
Previously, the matrix in VideoFrame was used to crop and scale the frame. This caused complications because webrtc::VideoFrame doesn't include a matrix. cropAndScale method is added to VideoBuffer class for cropping and scaling instead. BUG=webrtc:7749, webrtc:7760 Review-Url: https://codereview.webrtc.org/2990583002 Cr-Commit-Position: refs/heads/master@{#19179}