22e209d4f8
This replaces direct reference into the codecs_ array in many places. The variables current_send_codec_idx_ and send_codec_registered_ are replaced. COAUTHOR=kwiberg@webrtc.org BUG=4228 R=minyue@webrtc.org Review URL: https://webrtc-codereview.appspot.com/47819004 Cr-Commit-Position: refs/heads/master@{#8890}