Extract NotificationBuilderBase for holding the arguments.

chrome/android/java/src/org/chromium/chrome/browser/notifications/NotificationBuilder.java

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.chrome.browser.notifications;
 
 import android.app.Notification;
 import android.app.PendingIntent;
 import android.graphics.Bitmap;
 
@@ skipping 53 matching lines @@
     /**
      * Adds an action to the notification. Actions are typically displayed as a button adjacent to
      * the notification content.
      */
     NotificationBuilder addAction(
             int iconId, @Nullable CharSequence title, @Nullable PendingIntent intent);
 
     /**
      * Adds an action to the notification for opening the settings screen.
      */
-    NotificationBuilder addSettingsAction(int iconId, CharSequence title, PendingIntent intent);
+    NotificationBuilder addSettingsAction(
+            int iconId, @Nullable CharSequence title, @Nullable PendingIntent intent);
 
     /**
      * Sets the default notification options that will be used.
      * <p>
      * The value should be one or more of the following fields combined with
      * bitwise-or:
      * {@link Notification#DEFAULT_SOUND}, {@link Notification#DEFAULT_VIBRATE},
      * {@link Notification#DEFAULT_LIGHTS}.
      * <p>
      * For all default values, use {@link Notification#DEFAULT_ALL}.
      */
     NotificationBuilder setDefaults(int defaults);
 
     /**
      * Sets the vibration pattern to use.
      */
     NotificationBuilder setVibrate(@Nullable long[] pattern);
 }