Roll Skia from 53f69f15398a to 55abaf5893ae (9 revisions)

https://skia.googlesource.com/skia.git/+log/53f69f15398a..55abaf5893ae

2020-12-10 csmartdalton@google.com Add a stencil test for transparent tessellated strokes
2020-12-10 fmalita@chromium.org [skottie] Add text colorization GM
2020-12-10 jmbetancourt@google.com clean playback methods and constructors in SkottieView
2020-12-10 scroggo@google.com Fix blending bug in animated webp decodes
2020-12-10 johnstiles@google.com Add support for float/int bitcast intrinsics in Metal.
2020-12-10 johnstiles@google.com Add support for float/int bitcast intrinsics in SPIR-V.
2020-12-10 johnstiles@google.com Fix floatBitsToInt family of intrinsics and add tests.
2020-12-10 jvanverth@google.com Revise creation of blitCommandEncoder for speculative fix
2020-12-10 bsalomon@google.com Add read pixels test for GrSurfaceContext

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 jmbetancourt@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: None
Tbr: jmbetancourt@google.com
Change-Id: I98388a88625eef6a6ad39e60f9f3b041fdef72c2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2585105Reviewed-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@{#835758}

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': '53f69f15398a3a93439fa9bdf34b6ff3e7bcce37',
+  'skia_revision': '55abaf5893ae015eab7b6013c133578883de7886',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.