Jacob Richman 53fc96da9e Small Flutter strong mode cleanup fixes. (#7825)
* Small Flutter strong mode cleanup fixes.

These are cases where strong mode down cast composite errors
generally indicated cases that would performance or correctness
issues if Flutter code was run in a strong mode VM.

* Fix Command API so that it is always in terms of Map<String,String>.

* Fix typedef
2017-02-06 08:55:09 -08:00
..
2017-02-02 15:54:11 -08:00

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