Remove last call to Dep.get from NavigationBarView

Removes the last call to Dependency#get from NavigationBarView. A few
more calls were added in the process, but they will be easier to deal
with in future cls.

Bug: 218354102
Test: manual && atest SystemUITests
Change-Id: I0b6b3837d9f1cfd11f0cdb4089fb51ecf79b467b