Roll src/third_party/skia e7366841663b..166751ef578a (7 commits) (#11881)

https://skia.googlesource.com/skia.git/+log/e7366841663b..166751ef578a

git log e7366841663b..166751ef578a --date=short --no-merges --format='%ad %ae %s'
2019-09-04 jlavrova@google.com Fix for the build
2019-09-04 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-09-04 recipe-mega-autoroller@chops-service-accounts.iam.gserviceaccount.com Roll recipe dependencies (trivial).
2019-09-04 jlavrova@google.com Reshuffling bidi regions + empty text sizes + some font resolution bugs
2019-09-04 jvanverth@google.com Revert "Add launch screen to iOS apps"
2019-09-04 halcanary@google.com experimental: minimal_ios_mtl_skia_app
2019-09-04 jvanverth@google.com Add launch screen to iOS apps

Created with:
  gclient setdep -r src/third_party/skia@166751ef578a

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 jlavrova@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=jlavrova@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': 'e7366841663b381c789583322c27f5ab7a33e07e',
+  'skia_revision': '166751ef578adc70bf3fd139aba4d4cc001ed21a',
 
   # 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: f1c8a28d1261ef503008e33b7b71a06c
+Signature: b201648430d51e023976cbb06657ee40
 
 UNUSED LICENSES:
 
@@ -4842,6 +4842,7 @@ FILE: ../../../third_party/skia/docs/examples/Text_Size.cpp
 FILE: ../../../third_party/skia/docs/examples/Text_Skew_X.cpp
 FILE: ../../../third_party/skia/docs/examples/Typeface_Methods.cpp
 FILE: ../../../third_party/skia/docs/examples/Xor.cpp
+FILE: ../../../third_party/skia/experimental/minimal_ios_mtl_skia_app/main.mm
 FILE: ../../../third_party/skia/experimental/xform/SkShape.cpp
 FILE: ../../../third_party/skia/experimental/xform/SkShape.h
 FILE: ../../../third_party/skia/experimental/xform/SkXform.cpp