Roll ANGLE from c746ac65e9d6 to 7ff01bb15d40 (5 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/c746ac65e9d6..7ff01bb15d40

2020-05-25 j.vigil@samsung.com EGL: Add missing sync entry points
2020-05-25 jonahr@google.com GL: Entry points for GL_OES_texture_cube_map_array
2020-05-25 jmadill@chromium.org Context: init impl before creating objects.
2020-05-25 m.maiya@samsung.com Excplicitly include <string> header in tga_utils.h
2020-05-25 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Vulkan-ValidationLayers from b2cfe61366da to 6ff146b0bfce (7 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 westont@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: chromium:1085627
Tbr: westont@google.com
Change-Id: I00b783abb12e2a57d266a0b00a9f605236205dc4
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/291804
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
diff --git a/DEPS b/DEPS
index 42a5f65..c2c3d0b 100644
--- a/DEPS
+++ b/DEPS
@@ -7,7 +7,7 @@
 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@c746ac65e9d64aa74065ee30d7e7e810088c429c",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@7ff01bb15d4033e00813034f952cc18c91e27b73",
   # 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@31c9c6949e0224dbeeea566902fb4f7e6c21afde",