Also delete the class I420FrameCallback. BUG=webrtc:7124 Review-Url: https://codereview.webrtc.org/2678343002 Cr-Commit-Position: refs/heads/master@{#16478}
Also delete the class I420FrameCallback. BUG=webrtc:7124 Review-Url: https://codereview.webrtc.org/2678343002 Cr-Commit-Position: refs/heads/master@{#16478}