Dropping the first frame intended to fix a problem when switching cameras on N6 when we are capturing to textures but due to a silly bug fixed in this cl the frame was not dropped... BUG=webrtc:5262 TBR=magjed@webrtc.org Review URL: https://codereview.webrtc.org/1489363002 Cr-Commit-Position: refs/heads/master@{#10867}