Automated g4 rollback of changelist 181398700.
Automated g4 rollback of changelist 181398700.

*** Reason for rollback ***

Broke internal application

*** Original change description ***

Modify selection model to better support the zippy expansion case. Follow up CL updates the tools cell to use new interface

***

PiperOrigin-RevId: 181410173

angulardart/angular_components,angulardart/angular_components,angulardart/angular_components