This will allow customers to try out the lightweight isolate support in the Dart VM in AOT mode.

To be future proof, we also add the negative flags to the allow list, thereby allowing the Dart VM to
change the default in the future, while still allowing customers to opt out.

Issue b/158554251

Added cross-building Flutter Engine for ARM64 Linux platforms. This PR is part of ARM64 Linux support in the Flutter SDK.

* run safari desktop tests on luci

* fix safari issue. focus on dom element when new transform is received. add transform to test cases

* Update text_editing.dart

minor change to retrigger tests (recipe change is merged)

https://dart.googlesource.com/sdk.git/+log/99970d646dc9..fcaedc6d9587

2020-09-17 dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com Version 2.10.0-141.0.dev
2020-09-17 dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com Version 2.10.0-140.0.dev
2020-09-17 dart-luci-ci-builder@dart-ci.iam.gserviceaccount.com Version 2.10.0-139.0.dev

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/dart-sdk-flutter-engine
Please CC dart-vm-team@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/+doc/master/autoroll/README.md

Add a new field, max_frames_in_flight, to FlutterRunnerProductConfiguration. This allows it to be configurable from Fuchsia.

Tests were added as well to verify the new behavior.

Originally font change notification was handled by forwarding
WM_FONTCHANGE to the Flutter HWND, to avoid adding new API surface, but
that's not a good solution in a multi-window scenario, and it would
require a completely different solution for UWP. It also requires
non-obvious plumbing in the runner.

This replaces that with an explicit API, so that there's a clean and
obvious way for the runner to trigger this event.

Specify that the positive x direction is right, as opposed to left.