Roll third_party/externals/angle2 b2885bc..77fba58 (16 commits)

https://chromium.googlesource.com/angle/angle.git/+log/b2885bc4a40f..77fba58c9658

git log b2885bc..77fba58 --date=short --no-merges --format='%ad %ae %s'
2019-10-25 jmadill@chromium.org Fix improper vertex array assignment in ANGLE test.
2019-10-25 geofflang@chromium.org GL: Temporarily disable emulatePrimitiveRestartFixedIndex.
2019-10-25 jmadill@chromium.org Enable "-Wredundant-parens".
2019-10-25 jmadill@chromium.org Enable "-Wmissing-field-initializers".
2019-10-25 jmadill@chromium.org Enable "-Wshadow-field".
2019-10-25 jmadill@chromium.org Enable "-Wtautological-type-limit-compare".
2019-10-24 jmadill@chromium.org Use "full" git cl format by default.
2019-10-24 jmadill@chromium.org Capture/Replay: Write capture index file.
2019-10-24 tobine@google.com Fix TextureAttachment support for unsized DS formats
2019-10-24 jmadill@chromium.org Capture/Replay: Introduce environment options and docs.
2019-10-24 ianelliott@google.com Vulkan: Update expectations for SwiftShader sRGB fix
2019-10-24 jmadill@chromium.org Vulkan: Enable multithreading tests.
2019-10-24 jmadill@chromium.org GN: Fix one missing check for 'angle_has_build'.
2019-10-24 geofflang@chromium.org GL: Follow-up primitive restart emulation fixes.
2019-10-24 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader 7738ed7..883e817 (1 commits)
2019-10-24 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/glslang/src 5e634c8999e6..7662586844f4 (3 commits)

Created with:
  gclient setdep -r third_party/externals/angle2@77fba58c9658

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 michaelludwig@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.primary:Build-Debian9-Clang-x86_64-Release-ANGLE;skia.primary:Test-Win10-Clang-AlphaR2-GPU-RadeonR9M470X-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-Golo-GPU-QuadroP400-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC5i7RYH-GPU-IntelIris6100-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC6i5SYK-GPU-IntelIris540-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUC8i5BEK-GPU-IntelIris655-x86_64-Debug-All-ANGLE;skia.primary:Test-Win10-Clang-NUCD34010WYKH-GPU-IntelHD4400-x86_64-Debug-All-ANGLE
Bug: None
TBR=michaelludwig@google.com
Change-Id: I8bc28d720ae14ea00e42fbb0743bbbdeeb383794
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/250900
Reviewed-by: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: skia-autoroll <skia-autoroll@skia-public.iam.gserviceaccount.com>

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@b2885bc4a40fd5539980f0845f8ee9c6fa6098b4",
+  "third_party/externals/angle2"          : "https://chromium.googlesource.com/angle/angle.git@77fba58c9658dcce5729f1df0217fe9e4c0a2733",
   "third_party/externals/dawn"            : "https://dawn.googlesource.com/dawn.git@f104ec23bc569b5383b9d3df173beeef2b1ff128",
   "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",