SIGN IN SIGN UP

Widgets app refactor (#22269)

* Refactor of cupertino/material/widgets app

* update docs 

* Update tests for const
D
Dan Field committed
ea5435c2ef2692ae4f5e403a894181ceeb809bcb
Parent: 582f35d
Committed by GitHub <noreply@github.com> on 9/25/2018, 5:57:12 PM