Roll src/third_party/skia 6e637472ebf3..0a1e9efa392c (3 commits)

https://skia.googlesource.com/skia.git/+log/6e637472ebf3..0a1e9efa392c

git log 6e637472ebf3..0a1e9efa392c --date=short --no-merges --format='%ad %ae %s'
2019-09-02 michaelludwig@google.com Don't use AA convex path renderer if direction can't be determined
2019-09-01 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update SKP version
2019-09-01 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update Go deps

Created with:
  gclient setdep -r src/third_party/skia@0a1e9efa392c

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 jlavrova@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
TBR=jlavrova@google.com

Bug: chromium:996140
Change-Id: I931683042b9988fc9e51a7b75e6b53c7b1632338
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1779844Reviewed-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@{#692401}

DEPS

@@ -162,7 +162,7 @@ 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': '6e637472ebf3735e217df25c12d54930485a6e2d',
+  'skia_revision': '0a1e9efa392cd07863029388412b88869f4f084a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.