Roll src/third_party/skia 9ec77b5574b4..1d6281d4bb47 (4 commits)

https://skia.googlesource.com/skia.git/+log/9ec77b5574b4..1d6281d4bb47


git log 9ec77b5574b4..1d6281d4bb47 --date=short --no-merges --format='%ad %ae %s'
2018-09-18 mtklein@google.com Reland "implement SkPixmap::getPixel() with this->readPixels()."
2018-09-18 fmalita@chromium.org [skottie] Fix NaN |t| in CompTimeMapper::onTick
2018-09-18 fmalita@chromium.org [skottie] UBSAN divide-by-zero workaround
2018-09-18 mtklein@google.com centralize RP loads and stores


Created with:
  gclient setdep -r src/third_party/skia@1d6281d4bb47

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-autoroll

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;luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel
TBR=reed@chromium.org

Change-Id: Id64db95e4de86b7220fa8c5698ef42335a6edc9f
Reviewed-on: https://chromium-review.googlesource.com/1230639Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#592072}

DEPS

@@ -105,7 +105,7 @@ 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': '9ec77b5574b461a73d46c72871f6713823ffc3bb',
+  'skia_revision': '1d6281d4bb47510754f2c821482ee120c91bd438',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.