17b889b899
When a frame being stretched, the original rotation information is lost. This is to ensure it's carried over. Also removed StretchToBuffer function as it's not called and dangerous. BUG=4366 R=pthatcher@webrtc.org Review URL: https://webrtc-codereview.appspot.com/51869004 Cr-Commit-Position: refs/heads/master@{#9224}