📰 Fix card style when a neighbour is added or removed

chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java
index 9ba6879aae3ee2fe32f1e7929551dfeabef7cf79..bc9c9b425d19aa831603db4b77062a3104b9ab72 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/CardViewHolder.java
@@ -220,18 +220,18 @@ public void updateLayoutParams() {
             hasCardBelow = isCard(belowViewType) && belowViewType != ItemViewType.PROMO;
         }
 
+        @DrawableRes
+        int selectedBackground = selectBackground(hasCardAbove, hasCardBelow);
+        if (mBackground == selectedBackground) return;
+
+        mBackground = selectedBackground;
+        ViewUtils.setNinePatchBackgroundResource(itemView, selectedBackground);
+
         // By default the apparent distance between two cards is the sum of the bottom and top
         // height of their shadows. We want |mCardGap| instead, so we set the bottom margin to
         // the difference.
         getParams().bottomMargin =
                 hasCardBelow ? (mCardGap - (mCardShadow.top + mCardShadow.bottom)) : 0;
-
-        @DrawableRes
-        int selectedBackground = selectBackground(hasCardAbove, hasCardBelow);
-        if (mBackground != selectedBackground) {
-            mBackground = selectedBackground;
-            ViewUtils.setNinePatchBackgroundResource(itemView, selectedBackground);
-        }
     }
 
     /**