Roll src/third_party/skia 5b218519a4b1..a28a6959c0b6 (7 commits)

https://skia.googlesource.com/skia.git/+log/5b218519a4b1..a28a6959c0b6

git log 5b218519a4b1..a28a6959c0b6 --date=short --no-merges --format='%ad %ae %s'
2019-08-15 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-08-15 robertphillips@google.com Revert "Go back to blacklisting MSAA on all Intel GPUs"
2019-08-15 herb@google.com Add empty check for mask case. Small cleanups elsewhere.
2019-08-15 bungeman@google.com Restore SkFontMetrics documentation.
2019-08-15 bsalomon@google.com Turn off -Wreturn-std-move-in-c++11
2019-08-15 brianosman@google.com Go back to blacklisting MSAA on all Intel GPUs
2019-08-15 brianosman@google.com Remove MakeCrossContextFromEncoded, unused argument from ...FromPixmap

Created with:
  gclient setdep -r src/third_party/skia@a28a6959c0b6

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-blink-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
TBR=scroggo@google.com

Bug: chromium:527565 chromium:983926,chromium:881505,chromium:527565 chromium:983926
Change-Id: I4adbb557fa14af3262c5c85acaa9097048e40065
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1756565Reviewed-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@{#687399}

DEPS

@@ -145,7 +145,7 @@ 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': '5b218519a4b19e222630ac389f55cf84878a5f24',
+  'skia_revision': 'a28a6959c0b6f78d58d7498f1ff5a4e8ed3dca4d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.