Root Cause: There are two device details entries in Connected devices and Hearing devices page which can both go to the same page, it will have the endless loop problem.
Solution: Only show hearing device settings comes from Connected devices page.
Bug: 320709814
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDeviceDetailsFragmentTest
Change-Id: I26941d0d16ab3bb0df0cb2c481c25c6c41340261
The hearing aids settings page has successfully rolled out. Cleans up the codes that are related to flag controls.
Bug: 310203155
Test: atest AccessibilityHearingAidPreferenceControllerTest
Test: atest AccessibilityDetailsSettingsFragmentTest
Test: atest BluetoothDetailsHearingDeviceControlsControllerTest
Change-Id: Ib03952f734302cca8519cb1c70ba82601cb75527
* Extract the common part into HearingAidHelper.
* Remove abstract getHearingDevice(). Change to get the hearing device when needed.
* Move several classes from Bluetooth into Accessibility
Bug: 281783079
Test: make RunSettingsRoboTests ROBOTEST_FILTER="(HearingDeviceAudioRoutingBasePreferenceControllerTest|AccessibilityHearingAidPreferenceControllerTest|HearingAidHelperTest|HearingAidAudioRoutingPreferenceControllerTest|HearingDeviceCallRoutingPreferenceControllerTest)"
Change-Id: I79049107409b7086c6dcc8d48a6323e171ed1535
* Setup basic xml for hearing device controls and audio output in bluetooth detail device page.
* Use same PreferenceCategory with spatial audio and rename to
`feature_controls_group`
Bug: 237625815
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDetailsHearingDeviceControlsControllerTest
Test: make RunSettingsRoboTests ROBOTEST_FILTER=BluetoothDetailsAudioRoutingControllerTest
Change-Id: Ibe71757b53b9d65c6ab6efa1053d035e78882b68