Further refactoring on ActionDisabledByAdminDialog classes.

Bug: 184107103
Bug: 188836559

Test: m -j RunSettingsLibRoboTests ROBOTEST_FILTER=FinancedDeviceActionDisabledByAdminControllerTest
Test: m -j RunSettingsLibRoboTests ROBOTEST_FILTER=ManagedDeviceActionDisabledByAdminControllerTest
Test: m -j RunSettingsLibRoboTests ROBOTEST_FILTER=ActionDisabledLearnMoreButtonLauncherTest

Change-Id: I3c4056d82834b5e2a4afbd958be7c9d0b9af543e
12 files changed