Roll src/third_party/angle/ 505ea1bb5..c6a0618fb (1 commit)

https://chromium.googlesource.com/angle/angle.git/+log/505ea1bb56cc..c6a0618fb02a

$ git log 505ea1bb5..c6a0618fb --date=short --no-merges --format='%ad %ae %s'
2018-04-13 oetuaho Fix Vulkan renderer string for NVIDIA

Created with:
  roll-dep src/third_party/angle


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: Ie45a6821eeb4336c259608dec448b93bf32a0b6a
Reviewed-on: https://chromium-review.googlesource.com/1023834Reviewed-by: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: angle-chromium-autoroll <angle-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#552688}

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': '505ea1bb56ccce114c4ac4d1b7b856cb8dcdc47e',
+  'angle_revision': 'c6a0618fb02a53f55d967b37c175ef3b64070f3d',
   # 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.