Set fixed size to true on NewTabPageRecyclerView.

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

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/NewTabPageRecyclerView.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/NewTabPageRecyclerView.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/NewTabPageRecyclerView.java
index 72bbdee20dee6efaca228843ab431f77f89f90fa..0633cddc5b04e66a42efe3e27c4cca6276c99b9c 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/NewTabPageRecyclerView.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/cards/NewTabPageRecyclerView.java
@@ -80,6 +80,8 @@ public class NewTabPageRecyclerView extends RecyclerView {
         mToolbarHeight = res.getDimensionPixelSize(R.dimen.toolbar_height_no_shadow)
                 + res.getDimensionPixelSize(R.dimen.toolbar_progress_bar_height);
         mMaxHeaderHeight = res.getDimensionPixelSize(R.dimen.snippets_article_header_height);
+
+        setHasFixedSize(true);
     }
 
     public boolean isFirstItemVisible() {