GitLab

Add ContentColorUsage to the SurfaceAggregator's PrewalkResult, and
populate it during the pre-walk step.

Add implementations of the GetContentColorUsage method to
TextureLayerImpl, VideoLayerImpl. Set the corresponding
CompositorFrameMetadata for VideoResourceUpdater as well.

Bug: 955158, 976426
Change-Id: Iae00a5c413e3bb893cdc84319d8426b30b357667
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2036634Reviewed-by: Miguel Casas <mcasas@chromium.org>
Commit-Queue: ccameron <ccameron@chromium.org>
Cr-Commit-Position: refs/heads/master@{#738072}