Roll ANGLE from 067a12f05951 to c75473c2cf88 (10 revisions)

https://chromium.googlesource.com/angle/angle.git/+log/067a12f05951..c75473c2cf88

2020-12-11 cclao@google.com Vulkan: Generalize FlipRotationSpecConst to SpecializationConstant
2020-12-10 courtneygo@google.com Vulkan: clean up comments, rename per request
2020-12-10 cnorthrop@google.com Docs: Add limitation for Android usage on all apps
2020-12-10 courtneygo@google.com Vulkan: Eliminate fence wait from SyncVk
2020-12-10 jmadill@chromium.org Vulkan: Support XFB in non-Vertex stages.
2020-12-10 kaiyili@google.com Add an option to copy the artifact to vendor partition
2020-12-10 jmadill@chromium.org Increase internal max uniform blocks limit to 60.
2020-12-10 xiaoxuan.liu@arm.com EGL: Update EGL headers/xml
2020-12-10 angle-autoroll@skia-public.iam.gserviceaccount.com Roll SwiftShader from 84b9bb6621c7 to d94a77b304f4 (9 revisions)
2020-12-10 angle-autoroll@skia-public.iam.gserviceaccount.com Roll Chromium from 3fc522ff6579 to 2db43e774b6e (469 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 jmbetancourt@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
Tbr: jmbetancourt@google.com
Test: Test: Inspect the resulting markdown docTest: Test: angle_end2end_tests --gtest_filter=EGLSyncTest.*/ES2_VulkanTest: Test: run roll_aosp.sh --copy-to-vendor-partion, build the Android image
Change-Id: I47fb720d33928144a110d1478e02e140a71ce3ed
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/343203
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@067a12f059511ead6e91ab9e91af1d180ad9c144",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@c75473c2cf88b8068d77f2da4710c87aa08e06f9",
   "third_party/externals/brotli"          : "https://skia.googlesource.com/external/github.com/google/brotli.git@e61745a6b7add50d380cfd7d3883dd6c62fc2c71",
   "third_party/externals/d3d12allocator"  : "https://skia.googlesource.com/external/github.com/GPUOpen-LibrariesAndSDKs/D3D12MemoryAllocator.git@169895d529dfce00390a20e69c2f516066fe7a3b",
   # Dawn requires jinja2 and markupsafe for the code generator, and glslang and shaderc for SPIRV compilation.