Roll third_party/externals/angle2 845a09b..8c396a9 (5 commits)

https://chromium.googlesource.com/angle/angle.git/+log/845a09b8241e..8c396a9cc4a8

git log 845a09b..8c396a9 --date=short --first-parent --format='%ad %ae %s'
2020-01-21 flibitijibibo@gmail.com Ignore vulkan-loader dependency for GGP
2020-01-21 syoussefi@chromium.org Vulkan: Cleanup device feature query and enabling
2020-01-21 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-loader/src 2d6f74c6d431..af8c7e040f93 (11 commits)
2020-01-21 ianelliott@google.com Vulkan: Add support for GL_IMAGE_FORMAT_COMPATIBILITY_TYPE
2020-01-21 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-validation-layers/src 41a96d15fd99..ac02c61ffc63 (16 commits)

Created with:
  gclient setdep -r third_party/externals/angle2@8c396a9cc4a8

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 benjaminwagner@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/+/master/autoroll/README.md

Cq-Include-Trybots: skia/skia.primary:Build-Debian9-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: benjaminwagner@google.com
Change-Id: I22e37c867cf90b0d7a4d6c6b87d41cc28fadc098
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/265705
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@845a09b8241ecac9e268c32ed12bb13f883b39c4",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@8c396a9cc4a83eaf8828dac7f0a39ed30714c58a",
   "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@3c086a0c2e1dc3e2e14aaa3d78c052c7e07274b4",
   "third_party/externals/dng_sdk"         : "https://android.googlesource.com/platform/external/dng_sdk.git@c8d0c9b1d16bfda56f15165d39e0ffa360a11123",
   "third_party/externals/egl-registry"    : "https://skia.googlesource.com/external/github.com/KhronosGroup/EGL-Registry@a0bca08de07c7d7651047bedc0b653cfaaa4f2ae",