Roll Skia from f8dfc3b51883 to f3087d8297fe (5 revisions)

https://skia.googlesource.com/skia.git/+log/f8dfc3b51883..f3087d8297fe

2021-01-19 mtklein@google.com allow a fourth Val/Reg arg per op
2021-01-19 fmalita@chromium.org [svg] Cleanup: use FP alpha for opacity
2021-01-19 mtklein@google.com remove reg/imm unions
2021-01-19 scroggo@google.com Fix decoding gifs with too-big-bounds
2021-01-19 bsalomon@google.com Fix DrawEdgeAAQuad degenerate issue where 3D points don't correctly project to 2D points.

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/+doc/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
Cq-Do-Not-Cancel-Tryjobs: true
Bug: chromium:1162942
Tbr: scroggo@google.com
Change-Id: I7ed0b74cc37c0b75d0305d3f0cbcce5d2a66013f
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2638354Reviewed-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@{#844934}

DEPS

@@ -199,7 +199,7 @@ 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': 'f8dfc3b51883c03792f04ab8d16df68ef0b6e507',
+  'skia_revision': 'f3087d8297feb2478849f4a2e69f367da6ceb779',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.