1d26b6d898
Root cause: There is a bunch of different logic of preferences in CaptionPropertiesFragment. It’s hard to implement new features and hard to maintain and hard to be testable. Solution: Move out different logic of CaptionPropertiesFragment into controllers to reduce the complexity of the relationship between preference and fragment. Bug: 197695932 Test: make RunSettingsRoboTests ROBOTEST_FILTER=CaptionPropertiesFragmentTest CaptionTogglePreferenceControllerTest Change-Id: I7013a7aa284b587c329c2e678dbb079e553ea94d