BUG=webrtc:5268,webrtc:5273 TESTED=Fixed issues reported by: find webrtc/audio -type f -name *.cc -o -name *.h | xargs cpplint.py find webrtc/call -type f -name *.cc -o -name *.h | xargs cpplint.py followed by 'git cl presubmit'. R=kjellander@webrtc.org, pbos@webrtc.org Review URL: https://codereview.webrtc.org/1483323002 . Cr-Commit-Position: refs/heads/master@{#10853}