Roll src/third_party/skia/ 82d97bdbf..50f7a1e4a (1 commit)

https://skia.googlesource.com/skia.git/+log/82d97bdbfc0a..50f7a1e4abea

$ git log 82d97bdbf..50f7a1e4a --date=short --no-merges --format='%ad %ae %s'
2017-08-02 fmalita Add another sweep gradient tiling test

Created with:
  roll-dep src/third_party/skia


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

If the roll is causing failures, see:
http://www.chromium.org/developers/tree-sheriffs/sheriff-details-chromium#TOC-Failures-due-to-DEPS-rolls


CQ_INCLUDE_TRYBOTS=master.tryserver.blink:linux_trusty_blink_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel;master.tryserver.chromium.android:android_optional_gpu_tests_rel
TBR=liyuqian@chromium.org

Change-Id: Idec1c3d7d4146fc5b33c56236553073b1d6d52c9
Reviewed-on: https://chromium-review.googlesource.com/598147Reviewed-by: Skia Deps Roller <skia-deps-roller@chromium.org>
Commit-Queue: Skia Deps Roller <skia-deps-roller@chromium.org>
Cr-Commit-Position: refs/heads/master@{#491379}

DEPS

@@ -40,7 +40,7 @@ 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': '82d97bdbfc0a8dcaca5afb1290e48625c75e1175',
+  'skia_revision': '50f7a1e4abea043b57a39ea1da53a0697bfa1f01',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.