Suppress css3/blending/ failures on Vulkan FYI

These tests are failing on the Linux FYI SkiaRenderer Vulkan builders,
set them to be skipped.

My local test setup didn't include the flag --use-gl=any to match the
builder configuration, which caused the tests to be run using
Swiftshader GL and show as false positives. They fail locally if I
include this flag.

Bug: 993384
Change-Id: I9e76002eebcc3b27413127f4e8122f046538b5cf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1754582
Commit-Queue: Sean Gilhuly <sgilhuly@chromium.org>
Commit-Queue: Jonathan Ross <jonross@chromium.org>
Reviewed-by: Jonathan Ross <jonross@chromium.org>
Cr-Commit-Position: refs/heads/master@{#686980}
1 file changed