GitLab

Add helper in gfx::ColorSpace to, given an output color space,
compute
- the space in which rasterization should be performed
- the space in which blending should be performed.

Remove a place in the ui::Compositor where we check the
kHighDyanmicRange feature, and use the above helper functions
instead.

Add logic in display::Display to automatically update the
bit depth for media queries based on whether or not the
output color space is HDR. Allow forcing an scrgb-linear
profile using the --force-color-profile argument.

Add logic in display::ScreenWin to enable HDR mode. This
currently queries the HDR feature, but will pull the logic
out of the GPU process in the next patch.

R=hubbe
TBR=avi (for content/)

Bug: 682416
Change-Id: Ieffca5a3e0fa01a98aea5558db251712989519e7
Reviewed-on: https://chromium-review.googlesource.com/596776Reviewed-by: ccameron chromium <ccameron@chromium.org>
Commit-Queue: ccameron chromium <ccameron@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491211}