Roll src/third_party/skia 4c1ea43..88b8d11 (8 commits) (#8070)

https://skia.googlesource.com/skia.git/%2Blog/4c1ea43a79b5..88b8d1124b72

git log 4c1ea43..88b8d11 --date=short --no-merges --format=%ad %ae %s
2019-03-07 bsalomon@google.com Revert "Distinguish between "flushed" and "finished" idle state callbacks on GrTexture."
2019-03-07 fmalita@chromium.org [skottie] Use std::chrono for load time stats
2019-03-07 bsalomon@google.com Revert "Change promise image contract to for when Release and Done are called."
2019-03-06 herb@google.com Removed unused fallback code
2019-03-07 kjlubick@google.com [canvaskit] Increase timeout and add logging to further diagnose test flakiness
2019-03-06 mtklein@google.com fix f16norm mips
2019-03-06 bsalomon@google.com Change promise image contract to for when Release and Done are called.
2019-03-06 reed@google.com remove dead SK_SUPPORT_LEGACY_CHOOSERASTERPIPELINE code

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 (reed@google.com), and stop
the roller if necessary.

Author: skia-flutter-autoroll

DEPS

@@ -23,7 +23,7 @@ vars = {
   'fuchsia_git': 'https://fuchsia.googlesource.com',
   'github_git': 'https://github.com',
   'skia_git': 'https://skia.googlesource.com',
-  'skia_revision': '4c1ea43a79b5be7522adeac2e1e0d9ae21f26193',
+  'skia_revision': '88b8d1124b7280d379f7545eda4b9097a4d8a292',
 
   # 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: ea74b6b2903e553ca56be5bff0a607a6
+Signature: 5499bdd90e967369cfc64f95ffd6b6d7
 
 UNUSED LICENSES: