It turns out there were downstream use of the encoded_frame.h header that was moved in https://codereview.webrtc.org/1417283007/. Add a copy of it in the old location to allow a seamless transition. BUG=webrtc:5095 TBR=stefan@webrtc.org Review URL: https://codereview.webrtc.org/1447163006 . Cr-Commit-Position: refs/heads/master@{#10696}