GitLab

Adds a --bypass-skia-gold-functionality flag to the gtest implementation
of the Skia Gold pixel tests which causes all tests that use Skia Gold
to skip any actual interactions with Gold.

This is meant to be used in the unlikely event that there's a Gold
outage that can't be fixed quickly so that the outage does not block
CLs, etc.

Bug: 1057848
Change-Id: I9aebe7bb4dc460383096306d7ad1b9858eddd433
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2123509Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: Sven Zheng <svenzheng@chromium.org>
Commit-Queue: Brian Sheedy <bsheedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#755481}