0.11 md-chips readonly has incorrect padding

[osuritz]

Setting <md-chips readonly="true"> incorrectly adds 22px padding; see Codepen Demo.

This used to work... looks like, previously, the md-readonly attribute was set on the containing <md-chips> but it is now set on each individual <md-chip>
The style has not been updated: https://github.com/angular/material/blob/master/src/components/chips/chips.scss#L62

Either that, or maybe fix the binding for md-readonly on the template: https://github.com/angular/material/blob/master/src/components/chips/js/chipsDirective.js#L93

\'md-readonly\': !$mdChipsCtrl.ngModelCtrl

to

\'md-readonly\': !$mdChipsCtrl.readonly

[topherfangio]

Fixed by #4621. Please comment if you still see issues and I will reopen.