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Rotation is best done when rendered in GPU, added the shader code which rotates the frame. For renderers which don't support rotation, the rotation will be done before sending down the frame to render. By default, assume renderer can't do rotation. BUG=4145 R=glaznev@webrtc.org, pthatcher@webrtc.org Committed: https://code.google.com/p/webrtc/source/detail?r=8660 Review URL: https://webrtc-codereview.appspot.com/43569004 Cr-Commit-Position: refs/heads/master@{#8661} git-svn-id: http://webrtc.googlecode.com/svn/trunk@8661 4adac7df-926f-26a2-2b94-8c16560cd09d