Roll src/third_party/angle d968972519ba..41f6150edb16 (3 commits)

https://chromium.googlesource.com/angle/angle.git/+log/d968972519ba..41f6150edb16

git log d968972519ba..41f6150edb16 --date=short --first-parent --format='%ad %ae %s'
2020-01-17 sugoi@google.com Stubs for new required extensions
2020-01-16 sugoi@google.com Add blendable checks to GL_EXT_color_buffer_float
2020-01-16 rafael.cintron@microsoft.com Fix FL10_0 multisampling

Created with:
  gclient setdep -r src/third_party/angle@41f6150edb16

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 jonahr@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-asan;luci.chromium.try:win_optional_gpu_tests_rel
Bug: chromium:1036367
Tbr: jonahr@google.com
Change-Id: I6b0e6ec62522a3bf607cc0c85e0b00a0beb42ae4
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2006621Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#732723}

DEPS

@@ -193,7 +193,7 @@ 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': 'd968972519ba773684b66af48669f33c4dd53d35',
+  'angle_revision': '41f6150edb165f66a2ded18d258cc5ddb9ee9e95',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling SwiftShader
   # and whatever else without interference from each other.