Rebase LowLatency 2d canvas tests

BUG=788439
TBR=zmo@chromium.org
NOTRY=true

Cq-Include-Trybots: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Change-Id: I6fdbe5e935931480817f3fd9290fae7a13c162b1
Reviewed-on: https://chromium-review.googlesource.com/1144528
Commit-Queue: Justin Novosad <junov@chromium.org>
Reviewed-by: Justin Novosad <junov@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576723}
1 file changed