Roll src/third_party/skia/ 4d4b3aaa2..f5720cc4d (7 commits)

https://skia.googlesource.com/skia.git/+log/4d4b3aaa20e1..f5720cc4d1dd

$ git log 4d4b3aaa2..f5720cc4d --date=short --no-merges --format='%ad %ae %s'
2018-03-22 angle-skia-autoroll Roll skia/third_party/externals/angle2/ 8574357f1..3395c8b96 (5 commits)
2018-03-21 mtklein back to individual flags for :hsw
2018-03-20 benjaminwagner Remove some MSVC 32-bit Perf/Test jobs.
2018-03-21 ynovikov update_meta_config: Use new LUCI optional GPU Android trybot
2018-03-21 borenet [infra] Use new LUCI Mac trybot
2018-03-21 caryclark limit discrete path effect iterations
2018-03-21 joe Add Node as a bot asset.

Created with:
  roll-dep src/third_party/skia
BUG=chromium:731979,chromium:824467


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;master.tryserver.chromium.win:win_optional_gpu_tests_rel
TBR=jvanverth@chromium.org

Change-Id: Ie69305f18965af2a4aa09b0c4dd129e83e72f70c
Reviewed-on: https://chromium-review.googlesource.com/974757Reviewed-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@{#544992}

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': '4d4b3aaa20e1978390c572a49dfcd59a0975c32f',
+  'skia_revision': 'f5720cc4d1dd4ef895a2485a5db75dd7a5bdea4e',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.