Roll src/third_party/skia/ c4e384e5a..b3a695940 (8 commits)

https://skia.googlesource.com/skia.git/+log/c4e384e5ad85..b3a6959408e1

$ git log c4e384e5a..b3a695940 --date=short --no-merges --format='%ad %ae %s'
2018-04-18 csmartdalton ccpr: Clean up GrCCGeometry
2018-04-19 herb Adding pinning to the strike cache
2018-04-19 bsalomon Fix double counting of coverage in analytic round capped stroked circles.
2018-04-11 bungeman Document minimum OS requirements.
2018-04-19 angle-skia-autoroll Roll third_party/externals/angle2/ eeec3b14c..e24032a2c (2 commits)
2018-04-18 robertphillips rm SkRRectsGaussianEdgeMaskFilter
2018-04-19 borenet [skcms] Add version.sha1
2018-04-19 mtklein crash rather than overflow in SkTDArray

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;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=scroggo@chromium.org

Change-Id: I1993ae84dc847f2b4cff9f4dad8bd48296c97df5
Reviewed-on: https://chromium-review.googlesource.com/1020192
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@{#552187}

DEPS

@@ -89,7 +89,7 @@ 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': 'c4e384e5ad85250920cac6e8ee0e2a14b69d67e0',
+  'skia_revision': 'b3a6959408e177bc38b96cb29cfac692f876e100',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.