Respond with null data when no screen lock.

Safety Center expects a response to the broadcast in this case.
The Settings app should respond with explicitely no data to Safety
Center rather than not respond.

Bug: 295845686
Test: atest LockScreenSafetySourceTest
Change-Id: Ibaa134b1f93304731f37444ab222b3dc628bae02

src/com/android/settings/safetycenter/LockScreenSafetySource.java

@@ -63,6 +63,12 @@ public final class LockScreenSafetySource {
         }
 
         if (!screenLockPreferenceDetailsUtils.isAvailable()) {
+            SafetyCenterManagerWrapper.get().setSafetySourceData(
+                    context,
+                    SAFETY_SOURCE_ID,
+                    /* safetySourceData= */ null,
+                    safetyEvent
+            );
             return;
         }
 

tests/unit/src/com/android/settings/safetycenter/LockScreenSafetySourceTest.java

@@ -102,15 +102,15 @@ public class LockScreenSafetySourceTest {
     }
 
     @Test
-    public void setSafetySourceData_whenScreenLockIsDisabled_doesNotSetData() {
+    public void setSafetySourceData_whenScreenLockIsDisabled_setsNullData() {
         when(mSafetyCenterManagerWrapper.isEnabled(mApplicationContext)).thenReturn(true);
         when(mScreenLockPreferenceDetailsUtils.isAvailable()).thenReturn(false);
 
         LockScreenSafetySource.setSafetySourceData(mApplicationContext,
                 mScreenLockPreferenceDetailsUtils, EVENT_SOURCE_STATE_CHANGED);
 
-        verify(mSafetyCenterManagerWrapper, never()).setSafetySourceData(
+        verify(mSafetyCenterManagerWrapper).setSafetySourceData(
-                any(), any(), any(), any());
+                any(), eq(LockScreenSafetySource.SAFETY_SOURCE_ID), eq(null), any());
     }
 
     @Test