Roll src/third_party/skia/ ff25cdf89..42adc7989 (1 commit)

https://skia.googlesource.com/skia.git/+log/ff25cdf898e6..42adc7989d92

$ git log ff25cdf89..42adc7989 --date=short --no-merges --format='%ad %ae %s'
2018-01-13 liyuqian Revert "Revert "Revert "Revert "Snap alpha for small rects""""

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;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
TBR=ethannicholas@chromium.org

Change-Id: I0d83dc60d4d6c721e7a7acde5b990f4f78291053
Reviewed-on: https://chromium-review.googlesource.com/865723
Reviewed-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@{#529177}
diff --git a/DEPS b/DEPS
index c6388c3a..8d500b5 100644
--- a/DEPS
+++ b/DEPS
@@ -79,7 +79,7 @@
   # 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': 'ff25cdf898e6b95a6ab26cff4a9e7a94bd0755f1',
+  'skia_revision': '42adc7989d92e7a9a9b09f19c890192a5831caed',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.