tree 10eb5d3d4addd2acb5244a75b360f8eeb7335411
parent baa88da8899c5bcda01b312909b193e6e6c593a7
author Alex Fandrianto <alexfandrianto@google.com> 1459879798 -0700
committer Alex Fandrianto <alexfandrianto@google.com> 1459879798 -0700

croupier: Flutter Mega Upgrade

Many renames and API changes occurred to Flutter recently.
We have also been forced to move to Dart 1.15.0 (from Dart 1.14.0).

This means that we have these changes:
- A lot of annotations (@override), constructors before properties, and
  ${var} --> $var.
- Flutter-related renames (MainAxis, CrossAxis, StatelessWidget, StatefulWidget)
- Icons accessed via Icons.
- Image providers are ImageInfo now.
- Access the shell through a different filename.

- Shortcuts are made to work again, by depending on the local flutter checkout.
  FLUTTER_ROOT has become more important, and its "engine" artifacts are found
  there.

This will probably fail presubmit unless I update the Flutter manifest
to the new Flutter version.
March 31st: 4df24abb336ff5120eba3617d82b0022bbb77b0f

Change-Id: Ie8105d6886c03c779482f54374ab1e31349db4ca