Roll src/third_party/skia c244c2fbbbf8..ef4709b7850d (8 commits)

https://skia.googlesource.com/skia.git/+log/c244c2fbbbf8..ef4709b7850d


git log c244c2fbbbf8..ef4709b7850d --date=short --no-merges --format='%ad %ae %s'
2018-11-09 mtklein@google.com move blend-row routines to SkBlitter_ARGB32.cpp
2018-11-09 mtklein@google.com get familiar with SkBlitMask_D32.cpp
2018-11-09 egdaniel@google.com Revert "Have a GrBackendFormat be stored on gpu proxies."
2018-11-09 mtklein@google.com remove unused typedef
2018-11-09 halcanary@google.com SkQP: script: fix non-existant build path
2018-11-09 reed@google.com remove guards for hinting in google3
2018-11-09 nathanrogers@google.com Fix another typo in SkSize comments
2018-11-09 nigeltao@google.com Merge SkFooAdapterCodec impls into one impl


Created with:
  gclient setdep -r src/third_party/skia@ef4709b7850d

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=luci.chromium.try:android_optional_gpu_tests_rel;luci.chromium.try:linux-chromeos-compile-dbg;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;master.tryserver.blink:linux_trusty_blink_rel

BUG=chromium:903701 chromium:903756
TBR=allanmac@chromium.org

Change-Id: I49bf07d7c1d1b5a67bf3317b67cd93e5bcb44e6b
Reviewed-on: https://chromium-review.googlesource.com/c/1329504Reviewed-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@{#606895}

DEPS

@@ -116,7 +116,7 @@ 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': 'c244c2fbbbf85c58a43c977c7c28109a5cdb9cd9',
+  'skia_revision': 'ef4709b7850d0da575010e64f7a4d9eeeefcc83f',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.