Roll ANGLE from d667ad2 to cc958e0 (4 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/d667ad2f0127..cc958e0e8703

2020-08-12 jmadill@chromium.org Remove D3D9 configs from perf tests.
2020-08-12 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SPIRV-Tools from 8e1380996d6a to 13a65b1aee42 (4 revisions)
2020-08-12 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-ValidationLayers from fcfe5a3b19d5 to e930c45863c6 (7 revisions)
2020-08-12 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 59b4828f293e to 13f04d59c727 (3 revisions)

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-skia-autoroll
Please CC fmalita@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

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

Cq-Include-Trybots: skia/skia.primary:Build-Debian10-Clang-x86_64-Release-ANGLE;skia/skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Debug-All-ANGLE;skia/skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE
Bug: None
Tbr: fmalita@google.com
Change-Id: Id076e22ef39f75172d95efd99f7e0907b15e648d
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/309867
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>

Author: skia-autoroll

DEPS

@@ -7,7 +7,7 @@ vars = {
 deps = {
   "buildtools"                            : "https://chromium.googlesource.com/chromium/buildtools.git@505de88083136eefd056e5ee4ca0f01fe9b33de8",
   "common"                                : "https://skia.googlesource.com/common.git@9737551d7a52c3db3262db5856e6bcd62c462b92",
-  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@d667ad2f0127117e6a30057b09810dc0cce261e9",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@cc958e0e87034f591ea2a76d2809b13dad186c93",
   # Dawn requires jinja2 and markupsafe for the code generator, and glslang and shaderc for SPIRV compilation.
   # When the Dawn revision is updated these should be updated from the Dawn DEPS as well.
   "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@4a486be696b44151bbda5e837a784560b2d9154f",