Roll src/third_party/skia 64a3f8fcb749..c6d0fdfb4098 (4 commits)

https://skia.googlesource.com/skia.git/+log/64a3f8fcb749..c6d0fdfb4098

git log 64a3f8fcb749..c6d0fdfb4098 --date=short --first-parent --format='%ad %ae %s'
2020-03-04 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update Go Deps
2020-03-04 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 13184a2d..2f96e324 (443 commits)
2020-03-04 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 b84969ad69c3..9e9493f29dbf (7 commits)
2020-03-04 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 176f3a3dbbc9..126720bd2e57 (2 commits)

Created with:
  gclient setdep -r src/third_party/skia@c6d0fdfb4098

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-autoroll
Please CC herb@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-blink-rel;luci.chromium.try:linux-chromeos-compile-dbg;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: None
Tbr: herb@google.com
Change-Id: Ie3f871db69e66b34785230212e10480a1afd3c72
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2086951Reviewed-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@{#746687}

DEPS

@@ -175,7 +175,7 @@ vars = {
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling Skia
   # and whatever else without interference from each other.
-  'skia_revision': '64a3f8fcb74929e34acf1831f58cabf2e435042b',
+  'skia_revision': 'c6d0fdfb40987231be61ba3a47f6b34013a04606',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.