📰 Fix card style when a neighbour is added or removed

chrome/android/java/src/org/chromium/chrome/browser/suggestions/PartialUpdateId.java

 // Copyright 2017 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.suggestions;
 
 import android.support.annotation.IntDef;
 
 import java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
 
 /**
  * Payloads to be passed to mark the different types of partial binds that can be made on view
  * holders
  * @see org.chromium.chrome.browser.ntp.cards.InnerNode#notifyItemChanged(int, Object)
  */
 @IntDef({PartialUpdateId.OFFLINE_BADGE})
 @Retention(RetentionPolicy.SOURCE)
 public @interface PartialUpdateId {
     /** Marks a request to update a suggestion's offline badge */
     int OFFLINE_BADGE = 1;
+
+    /** Marks a request to update a card's background */

[Bernhard Bauer, 2017/01/24 17:20:05]

Maybe add a comment that this might be dispatched to view holders that are not
cards, but is a no-op in that case.

[dgn, 2017/01/24 20:09:53]

Done.

+    int CARD_BACKGROUND = 2;
 }