* Make ProcessFrame return void. * Make |encode_callback_| and |decode_callback_| direct members. * Remove ::EncodedFrameSize() and ::EncodedFrameType() * Remove unused |timestamp| member from FrameInfo. * Reorder printf output from PrintCodecSettings. * Make some member functions const. BUG=webrtc:6634 Review-Url: https://codereview.webrtc.org/2998063002 Cr-Commit-Position: refs/heads/master@{#19421}