Properly integrating GESTURE into Settings, so that text pertaining to the gesture shortcut are displayed when appropriate.
Heavy refactoring has been done to allow for easier cleanup and expansion
Demo video: https://x20web.corp.google.com/users/jo/jonesriley/splitShortcut/a11ySettingsGestureCompat.mp4
NO_IFTTT=changes do not alter the order of the shortcuts.
Bug: 365570709
Test: atest com.android.settings.accessibility
Flag: android.provider.a11y_standalone_gesture_enabled
Change-Id: If90719763a48e3b8bc35988a1de9a352a766953b
1. Add gesture preference controller for gesture navigation
2. Auto update the preview illustarion when screen reader is on
3. Auto update accessibility button title for system navigation
Bug: 190563948
Test: make RunSettingsRoboTests ROBOTEST_FILTER=AccessibilityButtonGesturePreferenceControllerTest ROBOTEST_FILTER=AccessibilityButtonPreviewPreferenceControllerTest ROBOTEST_FILTER=AccessibilityLayerDrawableTest ROBOTEST_FILTER=AccessibilityPreferenceControllerTest ROBOTEST_FILTER=AccessibilityButtonFooterPreferenceControllerTest
Change-Id: Ifa98fc029430d86d3143133b3203b239340f2e41