Roll src/third_party/skia/ 90864a21c..0caef298c (2 commits)

https://skia.googlesource.com/skia.git/+log/90864a21c4ab..0caef298c2ff

$ git log 90864a21c..0caef298c --date=short --no-merges --format='%ad %ae %s'
2018-05-02 liyuqian Let each threaded device in the ThreadSink own its SkExecutor
2018-05-02 egdaniel Add internal grsurface flag to track if using gl rectangle or external texture.

Created with:
  roll-dep src/third_party/skia


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

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=master.tryserver.blink:linux_trusty_blink_rel;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
TBR=brianosman@chromium.org

Change-Id: I87cb60797b453af519fa18b8d3c2369232bb9432
Reviewed-on: https://chromium-review.googlesource.com/1041066
Commit-Queue: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Reviewed-by: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#555623}

DEPS

@@ -96,7 +96,7 @@ 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': '90864a21c4ab6c7da3c6d671cf85a97373578243',
+  'skia_revision': '0caef298c2ff935b622673e09cd542151dc2ecc0',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.