[NTP Client] Always add space above the Signin Promo

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 e29abda9f9dde303e48c9bf7634438eecfd88ef6..41b37ca39cfd280c08ae4c765b96b7d54488ce04 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
@@ -171,8 +171,13 @@ public void updateLayoutParams() {
         int abovePosition = getAdapterPosition() - 1;
         boolean hasCardAbove = abovePosition >= 0 && isCard(adapter.getItemViewType(abovePosition));
         int belowPosition = getAdapterPosition() + 1;
-        boolean hasCardBelow = belowPosition < adapter.getItemCount()
-                && isCard(adapter.getItemViewType(belowPosition));
+        boolean hasCardBelow = false;
+        if (belowPosition < adapter.getItemCount()) {
+            // The PROMO card has an empty margin and will not be right against the preceding card,
+            // so we don't consider it a card from the point of view of the preceding one.
+            @ItemViewType int belowViewType = adapter.getItemViewType(belowPosition);
+            hasCardBelow = isCard(belowViewType) && belowViewType != ItemViewType.PROMO;
+        }
 
         getParams().bottomMargin = hasCardBelow ? -mCards9PatchAdjustment : 0;