Is there an existing issue for this?

• I have searched the existing issues
• I have read the guide to filing a bug

Use case

flutter.js is mostly interfacing with code written in the flutter/engine repo. Any changes to the way flutter.js bootstraps Flutter web need changes that are hard to implement because they need to be landed in lockstep.

Proposal

Changes would be much easier to land if flutter.js was vended by the engine and consumed by the flutter_tool.

Move this:

• https://github.com/flutter/flutter/blob/master/packages/flutter_tools/lib/src/web/file_generators/js/flutter.js

Somewhere here:

• https://github.com/flutter/engine

Then modify the engine builds so they vend flutter.js in a location that can then be loaded from the flutter_tools package.