Roll src/third_party/skia/ ab2621d3e..c4e31092b (3 commits)

https://skia.googlesource.com/skia.git/+log/ab2621d3e2d2..c4e31092b13e

$ git log ab2621d3e..c4e31092b --date=short --no-merges --format='%ad %ae %s'
2018-01-30 reed don't draw images with nonfinite dst bounds
2018-01-30 angle-skia-autoroll Roll skia/third_party/externals/angle2/ efb5a5c8f..6969132c1 (1 commit)
2018-01-30 reed handle clipping large triangles

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=bungeman@chromium.org

Change-Id: I2027c9d264d8b24f3058c671f38dedde548edf45
Reviewed-on: https://chromium-review.googlesource.com/893642
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@{#532953}

DEPS

@@ -83,7 +83,7 @@ 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': 'ab2621d3e2d2055096b9fbebf16ee443e4ea90fb',
+  'skia_revision': 'c4e31092b13ed9563d567043613897f0112236cd',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.