SIGN IN SIGN UP

Pay off some technical debt. (#8710)

* Rename `Device.platform` to `Device.targetPlatform` to avoid
  collision with the exported variable from `platform.dart`
T
Todd Volkert committed
34ed3d2d2414f414aa90f9f22a9ed0680cfd6c5e
Parent: 83d411f
Committed by GitHub <noreply@github.com> on 3/10/2017, 6:11:05 PM