The toolbar should set the theme to the app's theme. Because the
service cannot get the application context, we should pass this
information from application to service.
Bug: 218833400
Test: manual. Use light/dark theme for app, the toolbar shows with
the same theme
Test: atest TextViewIntegrationTest
Test: atest android.widget.TextViewActivityTest
Change-Id: I6d4e4e117c680ce57e760a87987059eded09b2bc
9325f9b97e