Roll src/third_party/skia/ 9fc53624a..487a7520b (5 commits)

https://skia.googlesource.com/skia.git/+log/9fc53624a09f..487a7520b5c9

$ git log 9fc53624a..487a7520b --date=short --no-merges --format='%ad %ae %s'
2018-01-04 angle-skia-autoroll Roll skia/third_party/externals/angle2/ 6df487ef1..47c8ea3fb (1 commit)
2018-01-03 fmalita [sksg] Refine invalidation logic
2018-01-03 benjaminwagner In iOS recipe, uninstall before install.
2018-01-03 angle-skia-autoroll Roll skia/third_party/externals/angle2/ fc3463da0..6df487ef1 (1 commit)
2018-01-03 angle-skia-autoroll Roll skia/third_party/externals/angle2/ 36937a64f..fc3463da0 (1 commit)

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=jcgregorio@chromium.org

Change-Id: Ib8ebe7a6542bebcb571d4115c01a5b3131a21777
Reviewed-on: https://chromium-review.googlesource.com/849416Reviewed-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@{#526916}

DEPS

@@ -78,7 +78,7 @@ 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': '9fc53624a09f6d3378b0a540832571dc1c31fbcd',
+  'skia_revision': '487a7520b5c97f1077ece4d87b9b82fac7b913e3',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.