Roll src/third_party/skia df54f37a5dc1..237a95fe7b28 (2 commits) (#11058)

https://skia.googlesource.com/skia.git/+log/df54f37a5dc1..237a95fe7b28

git log df54f37a5dc1..237a95fe7b28 --date=short --no-merges --format='%ad %ae %s'
2019-08-16 brianosman@google.com Remove old version of MakeCrossContextFromPixmap
2019-08-16 herb@google.com Part 1/2 to remove SkTextBlobCacheDiffCanvas::Settings

Created with:
  gclient setdep -r src/third_party/skia@237a95fe7b28

The AutoRoll server is located here: https://autoroll.skia.org/r/skia-flutter-autoroll

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

If the roll is causing failures, please contact the current sheriff, who should
be CC'd on the roll, and stop the roller if necessary.


Bug: None
TBR=scroggo@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': 'df54f37a5dc137258b3ce375d72d1ade8792b999',
+  'skia_revision': '237a95fe7b28ea2629808885c056db51580902fb',
 
   # 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

-Signature: 1cf5c0de77532b06d29bd78fbab83b08
+Signature: 8457c45f9eaf9b86e3f2f8f688fd8e8f
 
 UNUSED LICENSES: