Roll src/third_party/skia 24a4096..a7f3157 (1 commits) (#13353)

https://skia.googlesource.com/skia.git/+log/24a409611f24..a7f3157ac012

git log 24a4096..a7f3157 --date=short --no-merges --format='%ad %ae %s'
2019-10-25 [email protected] Only scale fallback font if it is too big

Created with:
  gclient setdep -r src/third_party/skia@a7f3157ac012

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 [email protected] 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
[email protected]

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': '24a409611f248f7d16ce37ea5667e8334458aaf6',
+  'skia_revision': 'a7f3157ac0125701653b8f36becd36b2886b70c7',
 
   # 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: 0a29dc8fa296ba50c1c69483e5e997cb
+Signature: 7bc14e943ca1c0d88be22579aaabb533
 
 UNUSED LICENSES: