fix(fullscreen magnification): Create connecting methods between SystemServer and SystemUI for fullscreen mode
1. Creating the methods onFullscreenMagnificationActivationChanged to notify the fullscreen magnification activation change.
2. Allow establishing the magnification connection in fullscreen only mode.
Bug: 291891390
Test: adb shell device_config put accessibility com.android.window.flags.magnification_always_draw_fullscreen_border true
atest MagnificationConnectionManagerTest
atest MagnificationControllerTest
atest MagnificationConnectionWrapperTest
atest AccessibilityManagerServiceTest
atest frameworks/base/services/tests/servicestests/src/com/android/server/accessibility/magnification
Flag: ACONFIG com.android.window.flags.magnification_always_draw_fullscreen_border DEVELOPMENT
Change-Id: I0bae5a074af6c0546bdb204c34656182d686a0df
10 files changed