Clear recent access list when fragment is paused.

When the fragment is resumed, the recent access list will be reloaded.
Clearing the list ahead of time results in a nicer animation and matches
the animtion when the fragment is first open.

Bug: 191503437
Test: manual
Change-Id: I91d01057acc601e6b2a40401f8bd69c5f5aa3579

src/com/android/settings/location/RecentLocationAccessPreferenceController.java

@@ -126,6 +126,15 @@ public class RecentLocationAccessPreferenceController extends LocationBasePrefer
         mCategoryRecentLocationRequests.setVisible(enabled);
     }
 
+    /**
+     * Clears the list of apps which recently accessed location from the screen.
+     */
+    public void clearPreferenceList() {
+        if (mCategoryRecentLocationRequests != null) {
+            mCategoryRecentLocationRequests.removeAll();
+        }
+    }
+
     /**
      * Initialize {@link ProfileSelectFragment.ProfileType} of the controller
      *