Make some accessibility related slices public.

Only PreferenceControllers with isPublicSlice() set to true are exposed
to other apps. Others will be Settings only.

Bug: 141088937
Test: robotests
Change-Id: If0fa79f7c270b10f8f1a47cb5f914d19566dedfb

src/com/android/settings/accessibility/AccessibilitySlicePreferenceController.java

@@ -91,7 +91,7 @@ public class AccessibilitySlicePreferenceController extends TogglePreferenceCont
     }
 
     @Override
-    public boolean isSliceable() {
+    public boolean isPublicSlice() {
         return true;
     }
 

src/com/android/settings/accessibility/MagnificationGesturesPreferenceController.java

@@ -69,6 +69,11 @@ public class MagnificationGesturesPreferenceController extends TogglePreferenceC
                 "screen_magnification_gestures_preference_screen");
     }
 
+    @Override
+    public boolean isPublicSlice() {
+        return true;
+    }
+
     @Override
     public CharSequence getSummary() {
         int resId = 0;

src/com/android/settings/accessibility/MagnificationNavbarPreferenceController.java

@@ -76,6 +76,11 @@ public class MagnificationNavbarPreferenceController extends TogglePreferenceCon
                 "screen_magnification_navbar_preference_screen");
     }
 
+    @Override
+    public boolean isPublicSlice() {
+        return true;
+    }
+
     @Override
     public CharSequence getSummary() {
         int resId = 0;

tests/robotests/src/com/android/settings/accessibility/AccessibilitySlicePreferenceControllerTest.java

@@ -121,6 +121,16 @@ public class AccessibilitySlicePreferenceControllerTest {
         new AccessibilitySlicePreferenceController(mContext, "not_split_by_slash");
     }
 
+    @Test
+    public void isSliceable_returnTrue() {
+        assertThat(mController.isSliceable()).isTrue();
+    }
+
+    @Test
+    public void isPublicSlice_returnTrue() {
+        assertThat(mController.isPublicSlice()).isTrue();
+    }
+
     private List<AccessibilityServiceInfo> getFakeServiceList() {
         final List<AccessibilityServiceInfo> infoList = new ArrayList<>();
 

tests/robotests/src/com/android/settings/accessibility/MagnificationGesturesPreferenceControllerTest.java

@@ -130,4 +130,9 @@ public class MagnificationGesturesPreferenceControllerTest {
                 new MagnificationGesturesPreferenceController(mContext, "bad_key");
         assertThat(controller.isSliceable()).isFalse();
     }
+
+    @Test
+    public void isPublicSlice_returnTrue() {
+        assertThat(mController.isPublicSlice()).isTrue();
+    }
 }

tests/robotests/src/com/android/settings/accessibility/MagnificationNavbarPreferenceControllerTest.java

@@ -174,4 +174,9 @@ public class MagnificationNavbarPreferenceControllerTest {
                 new MagnificationNavbarPreferenceController(mContext, "bad_key");
         assertThat(controller.isSliceable()).isFalse();
     }
+
+    @Test
+    public void isPublicSlice_returnTrue() {
+        assertThat(mController.isPublicSlice()).isTrue();
+    }
 }