Roll src/third_party/skia 31316e16555f..c071fc92cd3d (4 commits)

https://skia.googlesource.com/skia.git/+log/31316e16555f..c071fc92cd3d

git log 31316e16555f..c071fc92cd3d --date=short --no-merges --format='%ad %ae %s'
2019-08-22 skia-recreate-skps@skia-swarming-bots.iam.gserviceaccount.com Update Go deps
2019-08-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/angle2 6d653c02dd24..91dc5da80684 (8 commits)
2019-08-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll ../src 85a90848..0ef8680c (479 commits)
2019-08-22 skia-autoroll@skia-public.iam.gserviceaccount.com Roll third_party/externals/swiftshader 92eb0415d0b1..23742c0958dd (3 commits)

Created with:
  gclient setdep -r src/third_party/skia@c071fc92cd3d

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


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=egdaniel@google.com

Bug: chromium:None,chromium:None,chromium:None
Change-Id: Iddaf9b659e20099eda07ce8884f31a4fd7d6ff5d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1764620Reviewed-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@{#689385}

DEPS

@@ -145,7 +145,7 @@ 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': '31316e16555f47af727eaede9b7113ddba432f56',
+  'skia_revision': 'c071fc92cd3d423040db610a59494380c653891a',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.