Roll src/third_party/skia b6b7e7b6c8de..c694627157f2 (10 commits)

https://skia.googlesource.com/skia.git/+log/b6b7e7b6c8de..c694627157f2

git log b6b7e7b6c8de..c694627157f2 --date=short --first-parent --format='%ad %ae %s'
2019-12-03 herb@google.com Don't draw strikes that are too small
2019-12-03 mtklein@google.com remove SkColorSpaceXformSteps::Required
2019-12-03 kjlubick@google.com [skottieWASM] make sure we are using CPU or GPU correctly
2019-12-03 fmalita@chromium.org Reland "[skottie] Remove defensive seek(0) from Animation ctor"
2019-12-03 mtklein@google.com replace CSXformSteps::Required() in GrSurfaceContext
2019-12-03 mtklein@google.com Fix sprite blitter choice logic
2019-12-03 mtklein@google.com replace CSXformSteps::Required() in SkShader
2019-12-03 mtklein@google.com add friendly new ctor for xform steps
2019-12-03 jvanverth@google.com Some more tweaks to perspective path clipping
2019-12-03 fmalita@chromium.org Revert "[skottie] Remove defensive seek(0) from Animation ctor"

Created with:
  gclient setdep -r src/third_party/skia@c694627157f2

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 bsalomon@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: chromium:1029831
Tbr: bsalomon@google.com
Change-Id: I9ca41f472ee2a7964cba3cd289a2028f104090a2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1947978Reviewed-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@{#721151}

DEPS

@@ -172,7 +172,7 @@ 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': 'b6b7e7b6c8de74acb9dbb5b636634e20a27bcdaa',
+  'skia_revision': 'c694627157f24bef1959096f53c6a5f3ac98b5a2',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.