Roll src/third_party/skia a2406f9218a3..25cf469a112f (6 commits)

https://skia.googlesource.com/skia.git/+log/a2406f9218a3..25cf469a112f

git log a2406f9218a3..25cf469a112f --date=short --first-parent --format='%ad %ae %s'
2020-02-04 nifong@google.com Move Make functions for corner and discrete path effects into namespaces.
2020-02-04 mtklein@google.com remove misleading Uniforms apis
2020-02-04 mtklein@google.com thread alloc through to color filters
2020-02-04 jvanverth@google.com Set NSError on compilation/link timeouts.
2020-02-04 mtklein@google.com run .skps on PDF bots
2020-02-04 kjlubick@google.com [canvaskit] Fix flaky test

Created with:
  gclient setdep -r src/third_party/skia@25cf469a112f

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 scroggo@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
Bug: None
Tbr: scroggo@google.com
Change-Id: I238ec7558815abe8201ccc04e5516e205f5848a9
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2037619Reviewed-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@{#738351}

DEPS

@@ -176,7 +176,7 @@ 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': 'a2406f9218a3b6f2d87ca5a7dc01e46ed3518fd6',
+  'skia_revision': '25cf469a112f1b125ef4900b0e14c48994ebc062',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.