Roll src/third_party/angle 3a2562287939..88faa6967431 (2 commits)

https://chromium.googlesource.com/angle/angle.git/+log/3a2562287939..88faa6967431


git log 3a2562287939..88faa6967431 --date=short --no-merges --format='%ad %ae %s'
2018-12-12 jiajia.qin@intel.com ES31: Add unsized array length support in SSBO
2018-12-12 jiajia.qin@intel.com ES31: Use deepCopy to make sure that every node being used only once


Created with:
  gclient setdep -r src/third_party/angle@88faa6967431

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: I2f9b6884298885ce25f6cca4589a74ece6b7c4b1
Reviewed-on: https://chromium-review.googlesource.com/c/1372479Reviewed-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@{#615839}

DEPS

@@ -127,7 +127,7 @@ 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': '3a25622879393b22b9e77f851d974643ec71af6b',
+  'angle_revision': '88faa6967431ad1f64dc3cae0ec6cb0ed0be8efc',
   # 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.