Roll engine 8672e79af873..faa11214c09b (7 commits) (#45986)

git@github.com:flutter/engine.git/compare/8672e79af873...faa11214c09b

git log 8672e79af873..faa11214c09b --first-parent --oneline
2019-12-03 liyuqian@google.com Run benchmarks in Cirrus (#13950)
2019-12-03 stuartmorgan@google.com Report backing store changes in the macOS view (#13933)
2019-12-03 franciscojma@google.com Listen to keyUp event on meta modified keys (#13984)
2019-12-02 dnfield@google.com Fix live region logic (#14081)
2019-12-02 skia-flutter-autoroll@skia.org Roll src/third_party/skia e8c96d8e6116..2792515dab7c (1 commits) (#14069)
2019-12-02 bkonyi@google.com Roll src/third_party/dart 3f32196958..e4344a568f (1 commits) (#14073)
2019-12-02 skia-flutter-autoroll@skia.org Roll fuchsia/sdk/core/mac-amd64 from aVdHP... to 6QxEZ... (#14080)


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 chinmaygarde@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

-8672e79af8737a254bfe4bd384ccf79775dff35d
+faa11214c09b9ce0260b3c5a386502abe95a85fc