Roll Skia from f80a78602e37 to c48caaae49d0 (5 revisions)

https://skia.googlesource.com/skia.git/+log/f80a78602e37..c48caaae49d0

2020-06-03 jlavrova@google.com Fixing crash when some fonts are unresolved
2020-06-03 michaelludwig@google.com Add clipShader with perspective GM
2020-06-03 michaelludwig@google.com Divide by w for sample matrices
2020-06-03 herb@google.com remove SubRun from addGlyphToAtlas
2020-06-03 mtklein@google.com apply SkOpts_skx approach to SkOpts_hsw

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 tdenniston@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
Bug: None
Tbr: tdenniston@google.com
Change-Id: I2ee3f9079367dc9b4685506f4c5b3f8591726969
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2229226Reviewed-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@{#774933}

DEPS

@@ -182,7 +182,7 @@ 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': 'f80a78602e37d3236202465e0cdcad8800a79ff1',
+  'skia_revision': 'c48caaae49d0273590cb639dc3b9a681423c6b3d',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.