GitLab

This takes into account the color spaces of pixel data from
ImageBitmap being encoded into VideoFrame.

Bug: 897297
Change-Id: I5ee5b77eb067ce8f5cec91dbd584a1553f6e91f0
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2272134
Commit-Queue: Jie A Chen <jie.a.chen@intel.com>
Reviewed-by: Dan Sanders <sandersd@chromium.org>
Cr-Commit-Position: refs/heads/master@{#786156}