GitLab

The following tests are failing on some but not all Linux and Mac
configurations:

* http/tests/csspaint/invalidation-background-image.html
* http/tests/csspaint/invalidation-border-image.html
* http/tests/csspaint/invalidation-content-image.html

Updating expectations while a fix is being worked on.

Bug: 886566
Change-Id: Ic1df9c3d99d189104ee07f873561889c0e192221
Reviewed-on: https://chromium-review.googlesource.com/1234893Reviewed-by: Tommy Li <tommycli@chromium.org>
Commit-Queue: Asanka Herath <asanka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#592547}