Roll src/third_party/skia a7f3157ac012..60e7962ee93f (4 commits)

https://skia.googlesource.com/skia.git/+log/a7f3157ac012..60e7962ee93f

git log a7f3157ac012..60e7962ee93f --date=short --no-merges --format='%ad %ae %s'
2019-10-25 halcanary@google.com Upload text blob traces as assets for the bots
2019-10-25 rmistry@google.com Remove Perf LottieWeb_Canvas CPU/GPU bots
2019-10-25 rmistry@google.com Move SkottieWASM/LottieWeb* GPU bots to Golo
2019-10-25 halcanary@google.com nanobench: option to execute directory of TextBlobTraces as benches

Created with:
  gclient setdep -r src/third_party/skia@60e7962ee93f

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-autoroll
Please CC michaelludwig@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

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=michaelludwig@google.com

Bug: None
Change-Id: I5210ffaf73afc8d9dcf6be47746cdee83b768725
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1880156Reviewed-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@{#709483}

DEPS

@@ -171,7 +171,7 @@ 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': 'a7f3157ac0125701653b8f36becd36b2886b70c7',
+  'skia_revision': '60e7962ee93f1f26a0d0f5b6329d58195e00b8a3',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.