Roll src/third_party/skia 7f2b6fa66575..d7157b2ccf53 (3 commits)

https://skia.googlesource.com/skia.git/+log/7f2b6fa66575..d7157b2ccf53


git log 7f2b6fa66575..d7157b2ccf53 --date=short --no-merges --format='%ad %ae %s'
2018-11-14 egdaniel@google.com Revert "Reland "Have a GrBackendFormat be stored on gpu proxies.""
2018-11-14 mtklein@google.com skip alpha scale if 256
2018-11-14 egdaniel@google.com Reland "Have a GrBackendFormat be stored on gpu proxies."


Created with:
  gclient setdep -r src/third_party/skia@d7157b2ccf53

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,chromium:903701 chromium:903756
TBR=rmistry@chromium.org

Change-Id: Ib7f4f617164efa46fdc0435416971fbb06f2a197
Reviewed-on: https://chromium-review.googlesource.com/c/1335776Reviewed-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@{#608043}

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': '7f2b6fa6657513e470fa73bebdf4f0230ce8b19f',
+  'skia_revision': 'd7157b2ccf53febde957a2c229e5f59fbd4f5cf2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.