084c55a63a
Pretty much mirrors the work done on the encoding side in CLs: "Clean up ownership of webrtc::VideoEncoder" https://codereview.webrtc.org/3007643002/ "Let VideoEncoderSoftwareFallbackWrapper own the wrapped encoder" https://codereview.webrtc.org/3007683002/ "WebRtcVideoEngine: Encapsulate logic for unifying internal and external video codecs" https://codereview.webrtc.org/3006713002/ BUG=webrtc:7925 Review-Url: https://codereview.webrtc.org/3009973002 Cr-Commit-Position: refs/heads/master@{#19641}