Roll src/third_party/skia 04e7781..92ca3ba (15 commits) (flutter#15330)

https://skia.googlesource.com/skia.git/+log/04e77813f8f4..92ca3baba6a5

git log 04e7781..92ca3ba --date=short --first-parent --format='%ad %ae %s'
2020-01-08 mtklein@google.com JIT today's new _imm ops
2020-01-08 herb@google.com Hoist calculations up to regenerate
2020-01-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2020-01-08 mtklein@google.com skip no-op masks
2020-01-08 egdaniel@google.com Move the remainder of GrRenderTargetContext factories.
2020-01-08 mtklein@google.com refactor bit ops
2020-01-08 mtklein@google.com add add/sub/min/max w/ constant ops
2020-01-08 michaelludwig@google.com Reland "Avoid loop-dependent behavior in GrMemoryPoolBench"
2020-01-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2020-01-08 mtklein@google.com clamp to [0,1] before blending with normalized
2020-01-08 brianosman@google.com Expose the Input variable and Child name collections in SkRuntimeEffect
2020-01-08 mtklein@google.com Streamline skvm bilerp.
2020-01-08 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2020-01-08 egdaniel@google.com Reland "Move makeDeferredRenderTargetContext calls to factory on RTC."
2020-01-08 jvanverth@google.com Add method to delay drawable acquisition from MTKView

Created with:
  gclient setdep -r src/third_party/skia@92ca3baba6a5

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/skia-flutter-autoroll
Please CC jvanverth@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

Bug: None
Tbr: jvanverth@google.com

DEPS

@@ -26,7 +26,7 @@ vars = {
   'skia_git': 'https://skia.googlesource.com',
   # OCMock is for testing only so there is no google clone
   'ocmock_git': 'https://github.com/erikdoe/ocmock.git',
-  'skia_revision': '04e77813f8f491b43dfe8e139acbdeda951f63d9',
+  'skia_revision': '92ca3baba6a5d4c385ca684dc9db660efa1f2d94',
 
   # When updating the Dart revision, ensure that all entries that are
   # dependencies of Dart are also updated to match the entries in the

ci/licenses_golden/licenses_skia

@@ -1,4 +1,4 @@
-Signature: 5690edf519a79588ed0f6ffbc036dc99
+Signature: 93927b56840aa86fe1ff30e87411f968
 
 UNUSED LICENSES: