Roll src/third_party/angle c13ca2affeed..7c8928d0a054 (3 commits)

https://chromium.googlesource.com/angle/angle.git/+log/c13ca2affeed..7c8928d0a054

git log c13ca2affeed..7c8928d0a054 --date=short --no-merges --format='%ad %ae %s'
2019-08-05 lujc@google.com Add more tests covering gl::vertexAttribPointer
2019-08-05 lujc@google.com FrameCapture dump GLenum to enum instead of value
2019-08-05 jmadill@chromium.org Capture/Replay: Capture entry point enum when possible.

Created with:
  gclient setdep -r src/third_party/angle@7c8928d0a054

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=ynovikov@chromium.org

Bug: None
Change-Id: If64232ca7d2e2222119bd42a94e2025764e69e34
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1737587Reviewed-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@{#684167}

DEPS

@@ -157,7 +157,7 @@ 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': 'c13ca2affeed8cd85641598d05498b8b464e5ad6',
+  'angle_revision': '7c8928d0a054da47dddb2dd06d4dd292d40a343d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.