Roll src/third_party/skia/ c68ba1d7d..300cc5b5c (12 commits)

https://skia.googlesource.com/skia.git/+log/c68ba1d7d981..300cc5b5c1e1

$ git log c68ba1d7d..300cc5b5c --date=short --no-merges --format='%ad %ae %s'
2018-02-20 caryclark fix IRect doc
2018-02-20 halcanary SkQP: update README.md
2018-02-20 fmalita Add SkRect::contains(SkScalar x, SkScalar y)
2018-02-20 csmartdalton Drop unused support for MSAA sample locations
2018-02-20 halcanary android_build_app: optionally disable gradle daemon
2018-02-20 fmalita [sksg] Add 'plane' geometry node
2018-02-20 stephana Add SKQP bot to build universal APK to master
2018-02-15 csmartdalton ccpr: Fix a couple issues with tessellation and winding
2018-02-20 jvanverth Some more cleanup of GrDrawOpAtlas compaction
2018-01-25 mtklein Reland "remove third_party/etc1"
2018-02-20 halcanary Docs: clean up links
2018-02-14 csmartdalton Drop unused shader support for multisample interpolation

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=djsollen@chromium.org

Change-Id: Ifd60a31ef8b4620f988fb7a85dd5f6d009b458cd
Reviewed-on: https://chromium-review.googlesource.com/926902Reviewed-by: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Commit-Queue: skia-chromium-autoroll <skia-chromium-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#537866}

DEPS

@@ -79,7 +79,7 @@ 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': 'c68ba1d7d9817915592e2077ba19c463e7f2b254',
+  'skia_revision': '300cc5b5c1e11ecaaeb3e6937605da09fb3555e5',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.