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This flag is no longer used in YUV draw quad and dc layer overlay. The first clean-up
of this flag in video frame metadata has been checked in. This CL will remove this
flag completely.

Bug:1340270



Change-Id: Id5816ca0aaf4dc99f22988c4eba4ff5818a94678
Reviewed-on: https://chromium-review.googlesource.com/c/1340270
Commit-Queue: Maggie Chen <magchen@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Reviewed-by: Antoine Labour <piman@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#609941}