GitLab

The color conversion pass using kSrcOver blending mode may cause
blending error when alpha channel exists in child pass. Using kSrc
as blending mode will avoid this problem.

Bug: 1045800,1062184
Change-Id: If03bf0ff7b366f8810a11f2f02e9c57aa904d6cd
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2306909
Commit-Queue: Richard Li <richard.li@intel.com>
Reviewed-by: Sunny Sachanandani <sunnyps@chromium.org>
Cr-Commit-Position: refs/heads/master@{#790710}