Add new NTP layout with snippet cards and hide it behind a flag

chrome/android/java/src/org/chromium/chrome/browser/ntp/v2/SnippetHeaderViewHolder.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/v2/SnippetHeaderViewHolder.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/v2/SnippetHeaderViewHolder.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/v2/SnippetHeaderViewHolder.java
new file mode 100644
index 0000000000000000000000000000000000000000..936bf176532b3fccf5f1761715802a35f65c74e8
--- /dev/null
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/v2/SnippetHeaderViewHolder.java
@@ -0,0 +1,35 @@
+// 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.ntp.v2;
+
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+
+import org.chromium.chrome.R;
+import org.chromium.chrome.browser.ntp.NewTabPageViewHolder;
+
+/**
+ * A class that represents the view for a header of a group of card snippets.
+ */
+public class SnippetHeaderViewHolder extends NewTabPageViewHolder {
+    public SnippetHeaderViewHolder(View view) {
+        super(view);
+    }
+
+    /**
+     * Creates the TextView object for displaying the header for a group of snippets
+     *
+     * @param parent The parent view for the header
+     * @return a TextView object for displaying a header for a group of snippets
+     */
+    public static View createView(ViewGroup parent) {
+        return LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.new_tab_page_snippets_header, parent, false);
+    }
+
+    @Override
+    public void onBindViewHolder(NewTabPageListItem snippetItem) {}
+}