Roll engine 8882bf3c73f5..39e6901e6395 (21 commits) (#43228)

git@github.com:flutter/engine.git/compare/8882bf3c73f5...39e6901e6395

git log 8882bf3c73f5..39e6901e6395 --no-merges --oneline
2019-10-21 iska.kaushik@gmail.com Add recipe changelog (flutter/engine#13270)
2019-10-21 jonahwilliams@google.com fix NPE in accessibility bridge (flutter/engine#13255)
2019-10-21 skia-flutter-autoroll@skia.org Roll src/third_party/skia 9889d509ed9f..56f569d9bec2 (21 commits) (flutter/engine#13266)
2019-10-21 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from hc4p_... to hALu4... (flutter/engine#13252)
2019-10-21 mouad.debbar@gmail.com [web] Support input action (flutter/engine#13268)
2019-10-21 mouad.debbar@gmail.com [web] Support -j to use goma in felt build (flutter/engine#13259)
2019-10-21 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from 30Ua7... to _e7Up... (flutter/engine#13254)
2019-10-21 jason-simmons@users.noreply.github.com Hold a reference to the Skia unref queue in UIDartState (flutter/engine#13239)
2019-10-21 jason-simmons@users.noreply.github.com Do not attempt to drain the SkiaUnrefQueue in the destructor (flutter/engine#13237)
2019-10-21 bkonyi@google.com Updated license script to ignore testdata directories, which often contain object files and other compilation results (flutter/engine#13261)
2019-10-21 iska.kaushik@gmail.com Add templates to generate fuchsia host bundles (flutter/engine#13158)
2019-10-21 garyq@google.com Update ui.instantiateImageCodec docs to reflect what it does. (flutter/engine#13233)
2019-10-21 hterkelsen@users.noreply.github.com Update CanvasKit to 0.7.0 and flesh out painting (flutter/engine#13240)
2019-10-19 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from CYDvx... to 30Ua7... (flutter/engine#13251)
2019-10-19 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from 0JpMS... to hc4p_... (flutter/engine#13250)
2019-10-19 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/linux-amd64 from bdTv5... to CYDvx... (flutter/engine#13249)
2019-10-19 skia-flutter-autoroll@skia.org Roll src/third_party/skia c65eb34d2f37..9889d509ed9f (1 commits) (flutter/engine#13248)
2019-10-19 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from SevlL... to 0JpMS... (flutter/engine#13244)
2019-10-19 skia-flutter-autoroll@skia.org Roll src/third_party/skia 7605c89c00f7..c65eb34d2f37 (3 commits) (flutter/engine#13243)
2019-10-19 bkonyi@google.com Ignore *.obj files when gathering licenses (flutter/engine#13241)
2019-10-18 garyq@google.com Roll buildroot to 994c6 (flutter/engine#13236)


If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/flutter-engine-flutter-autoroll
Please CC franciscojma@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

bin/internal/engine.version

-8882bf3c73f5f943a13a7ac6c82fe4580dbab638
+39e6901e6395c278b347e16005523a0f16d5f2fe