Roll src/third_party/angle 4ce287e04201..a977acc85769 (1 commits)

https://chromium.googlesource.com/angle/angle.git/+log/4ce287e04201..a977acc85769


git log 4ce287e04201..a977acc85769 --date=short --no-merges --format='%ad %ae %s'
2018-09-21 jiawei.shao@intel.com ES31: Support translating textureGather into HLSL - Part I


Created with:
  gclient setdep -r src/third_party/angle@a977acc85769

The AutoRoll server is located here: https://autoroll.skia.org/r/angle-chromium-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.

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
TBR=jmadill@chromium.org

Change-Id: Ieaabd8a9d295b36b5d49fca6a350576218c5267d
Reviewed-on: https://chromium-review.googlesource.com/1237474Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#593055}

DEPS

@@ -117,7 +117,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': '4ce287e042018470122eeecd89524c9b110f955b',
+  'angle_revision': 'a977acc857696a83f43b22968c99ff8318a547dd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling build tools
   # and whatever else without interference from each other.