Roll Skia from 5c7bb326a7b3 to 65674e4c2e56 (3 revisions) (flutter#22060)

https://skia.googlesource.com/skia.git/+log/5c7bb326a7b3..65674e4c2e56

2020-10-22 kjlubick@google.com [canvaskit] Compile in most gms for testing
2020-10-22 johnstiles@google.com Reland "Add pooling support on iOS."
2020-10-22 egdaniel@google.com Fix asserts for npot tiling in gl.

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 egdaniel@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

Author: skia-flutter-autoroll

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': '5c7bb326a7b3015d36a86094f54e272c787f721b',
+  'skia_revision': '65674e4c2e56f151b106382ab6f5ff0c5e24c594',
 
   # 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: 6e1bc02b61a4bd8a2277bed3487261da
+Signature: 48654c8bd8b039350630bfac466bb3ce
 
 UNUSED LICENSES: