Roll src/third_party/angle/ 10434f676..23dc90b81 (5 commits)

https://chromium.googlesource.com/angle/angle.git/+log/10434f67672d..23dc90b81efb

$ git log 10434f676..23dc90b81 --date=short --no-merges --format='%ad %ae %s'
2018-04-23 lfy GLES1: Enable/disable for texture targets
2018-04-25 oetuaho Handle negative float to uint conversion robustly
2018-04-24 lucferron Vulkan: Enable UnpackAlignmentTest and remove useless warning.
2018-04-24 lucferron Vulkan: Fix issue with texsubimage2d barriers
2018-04-25 jmadill Clean up DEPS style.

Created with:
  roll-dep src/third_party/angle
BUG=chromium:835868,chromium:782846


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

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=geofflang@chromium.org

Change-Id: I7ff0b0ad560ed9fadcce00db4c136232330826c9
Reviewed-on: https://chromium-review.googlesource.com/1028521
Commit-Queue: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#553799}

DEPS

@@ -102,7 +102,7 @@ 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': '10434f67672df2d556338819f2918ecfdd06fae7',
+  'angle_revision': '23dc90b81efb6156a3a771fb4771f653ab02bee7',
   # 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.