Roll src/third_party/angle bc82fb14aab4..8784a9284f65 (10 commits)

https://chromium.googlesource.com/angle/angle.git/+log/bc82fb14aab4..8784a9284f65

git log bc82fb14aab4..8784a9284f65 --date=short --first-parent --format='%ad %ae %s'
2019-12-02 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader fb7ca1d5aca5..b64fbfec4dcd (3 commits)
2019-12-02 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/spirv-tools/src b334829a91d6..47f3eb42641b (1 commits)
2019-12-02 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/glslang/src 38b4db48f98c..83af46951202 (1 commits)
2019-11-29 amaiorano@google.com Use Vulkan rectangle lines to emulate OpenGL multisampled lines
2019-11-29 syoussefi@chromium.org Ignore .git_cl_description_backup
2019-11-29 syoussefi@chromium.com Update flex and bison binaries for Windows.
2019-11-29 syoussefi@chromium.org Update flex and bison binaries for Linux.
2019-11-29 syoussefi@chromium.org Infrastructure for uploading flex/bison binaries
2019-11-29 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/vulkan-validation-layers/src 61050599ec0f..4fde9b750992 (1 commits)
2019-11-29 angle-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/SwiftShader d6e903bdc9ef..fb7ca1d5aca5 (13 commits)

Created with:
  gclient setdep -r src/third_party/angle@8784a9284f65

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/angle-chromium-autoroll
Please CC geofflang@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: luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
Bug: chromium:None,chromium:None,chromium:None,chromium:None,chromium:3419,chromium:3419,chromium:None,chromium:None
Tbr: geofflang@google.com
Change-Id: I50845379bdf33ffad22c64afa291e5e7c6d64ed3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1946261Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: Geoff Lang <geofflang@chromium.org>
Cr-Commit-Position: refs/heads/master@{#720493}

DEPS

@@ -184,7 +184,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling ANGLE
   # and whatever else without interference from each other.
-  'angle_revision': 'bc82fb14aab4b1238cdb7291bdd34816863f26b8',
+  'angle_revision': '8784a9284f653b9bc6fa54d75217e4f2a190376c',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.