Roll src/third_party/skia/ f9af55641..1946aaf15 (1 commit)

https://skia.googlesource.com/skia.git/+log/f9af55641a6d..1946aaf15ca0

$ git log f9af55641..1946aaf15 --date=short --no-merges --format='%ad %ae %s'
2017-12-06 kjlubick Disable ThermalManager for Nexus5x

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=rmistry@chromium.org

Change-Id: I5d9cba8dc120bd45ba413943d8f8df03148a32f0
Reviewed-on: https://chromium-review.googlesource.com/810924Reviewed-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@{#522090}

DEPS

@@ -74,7 +74,7 @@ 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': 'f9af55641a6d67730d900c95004840e13a859a7d',
+  'skia_revision': '1946aaf15ca0cbed7842f6df8c347284061ef2f9',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.