Roll src/third_party/skia 54ff302cdc5a..ff6a73cc08af (9 commits)

https://skia.googlesource.com/skia.git/+log/54ff302cdc5a..ff6a73cc08af


git log 54ff302cdc5a..ff6a73cc08af --date=short --no-merges --format='%ad %ae %s'
2018-08-17 mtklein@google.com add rec2020 configs to DM
2018-08-17 robertphillips@google.com Pull non-substantive changes out of GrShape mask drawing CL
2018-08-17 reed@google.com try to help res-scaling in perspective
2018-08-17 robertphillips@google.com Reland "Make directFilterMaskGPU & directFilterRRectMaskGPU no longer require canFilterMaskGPU's permission"
2018-08-17 recipe-roller@chromium.org Roll recipe dependencies (nontrivial).
2018-08-17 kjlubick@google.com [PathKit] Add conic tests and re-create expectations.
2018-08-17 angle-skia-autoroll@skia-buildbots.google.com.iam.gserviceaccount.com Roll third_party/externals/angle2 3394a73db973..43a2762db19a (1 commits)
2018-08-17 kjlubick@google.com [PathKit] Rework API to avoid extra copies unless explicitly called for.
2018-08-17 caryclark@skia.org update doc index


Created with:
  gclient setdep -r src/third_party/skia@ff6a73cc08af

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=kjlubick@chromium.org

Change-Id: Iadc4ac9d71bd79276fc8da58cfd5bdb58263ec39
Reviewed-on: https://chromium-review.googlesource.com/1180321Reviewed-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@{#584223}

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': '54ff302cdc5a0c1308998c8794b7d02fc2b68040',
+  'skia_revision': 'ff6a73cc08af15f1fc8ba38dfa1dc7c2774fa060',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.