NoMan: Refresh ManagedServices on user switch

Fix a bug where ManagedServices didn't unbind from obsolete and
bind to new services after switching the current user.

Bug: 17477093
Change-Id: Ica28978a01f84ba17bdd93e2feaf68547e837bcc

services/core/java/com/android/server/notification/ManagedServices.java

@@ -87,6 +87,10 @@ abstract public class ManagedServices {
     // Just the packages from mEnabledServicesForCurrentProfiles
     private ArraySet<String> mEnabledServicesPackageNames = new ArraySet<String>();
 
+    // Kept to de-dupe user change events (experienced after boot, when we receive a settings and a
+    // user change).
+    private int[] mLastSeenProfileIds;
+
     public ManagedServices(Context context, Handler handler, Object mutex,
             UserProfiles userProfiles) {
         mContext = context;
@@ -159,6 +163,15 @@ abstract public class ManagedServices {
         }
     }
 
+    public void onUserSwitched() {
+        if (DEBUG) Slog.d(TAG, "onUserSwitched");
+        if (Arrays.equals(mLastSeenProfileIds, mUserProfiles.getCurrentProfileIds())) {
+            if (DEBUG) Slog.d(TAG, "Current profile IDs didn't change, skipping rebindServices().");
+            return;
+        }
+        rebindServices();
+    }
+
     public ManagedServiceInfo checkServiceTokenLocked(IInterface service) {
         checkNotNull(service);
         final IBinder token = service.asBinder();
@@ -321,6 +334,8 @@ abstract public class ManagedServices {
                 registerService(component, userIds[i]);
             }
         }
+
+        mLastSeenProfileIds = mUserProfiles.getCurrentProfileIds();
     }
 
     /**
@@ -523,6 +538,8 @@ abstract public class ManagedServices {
 
         private void update(Uri uri) {
             if (uri == null || mSecureSettingsUri.equals(uri)) {
+                if (DEBUG) Slog.d(TAG, "Setting changed: mSecureSettingsUri=" + mSecureSettingsUri +
+                        " / uri=" + uri);
                 rebindServices();
             }
         }

services/core/java/com/android/server/notification/NotificationManagerService.java

@@ -718,6 +718,9 @@ public class NotificationManagerService extends SystemService {
                 // reload per-user settings
                 mSettingsObserver.update(null);
                 mUserProfiles.updateCache(context);
+                // Refresh managed services
+                mConditionProviders.onUserSwitched();
+                mListeners.onUserSwitched();
             } else if (action.equals(Intent.ACTION_USER_ADDED)) {
                 mUserProfiles.updateCache(context);
             }