aebc61e3dc
This CL is broken out from a future "real" CL, that introduces support for pipelining HW codecs to VideoProcessor. I order to simplify the reviewing of that CL a bit, some of the cleanups are split out here. No functional changes are intended. BUG=webrtc::6634 Review-Url: https://codereview.webrtc.org/2709123004 Cr-Commit-Position: refs/heads/master@{#16909}