[Offline pages on the NTP] Add UMA for offline-available NTP tiles

chrome/android/java/src/org/chromium/chrome/browser/ntp/MostVisitedItem.java

Index: chrome/android/java/src/org/chromium/chrome/browser/ntp/MostVisitedItem.java
diff --git a/chrome/android/java/src/org/chromium/chrome/browser/ntp/MostVisitedItem.java b/chrome/android/java/src/org/chromium/chrome/browser/ntp/MostVisitedItem.java
index 64b6b0cfb128e7a55382edf5c7c23433cbf02ddd..3e83b9e264149fb990bfd8a9dcc46afb3ca03d35 100644
--- a/chrome/android/java/src/org/chromium/chrome/browser/ntp/MostVisitedItem.java
+++ b/chrome/android/java/src/org/chromium/chrome/browser/ntp/MostVisitedItem.java
@@ -49,6 +49,7 @@ public class MostVisitedItem implements OnCreateContextMenuListener,
     private MostVisitedItemManager mManager;
     private String mTitle;
     private String mUrl;
+    private boolean mOfflineAvailable;
     private int mIndex;
     private int mTileType;
     private View mView;
@@ -59,12 +60,15 @@ public class MostVisitedItem implements OnCreateContextMenuListener,
      * @param manager The NewTabPageManager used to handle clicks and context menu events.
      * @param title The title of the page.
      * @param url The URL of the page.
+     * @param offlineAvailable Whether there is an offline copy of the URL available.
      * @param index The index of this item in the list of most visited items.
      */
-    public MostVisitedItem(MostVisitedItemManager manager, String title, String url, int index) {
+    public MostVisitedItem(MostVisitedItemManager manager, String title, String url,
+            boolean offlineAvailable, int index) {
         mManager = manager;
         mTitle = title;
         mUrl = url;
+        mOfflineAvailable = offlineAvailable;
         mIndex = index;
         mTileType = MostVisitedTileType.NONE;
     }
@@ -102,6 +106,13 @@ public class MostVisitedItem implements OnCreateContextMenuListener,
     }
 
     /**
+     * @return Whether this item is available offline.
+     */
+    public boolean isOfflineAvailable() {
+        return mOfflineAvailable;
+    }
+
+    /**
      * @return The index of this MostVisitedItem in the list of MostVisitedItems.
      */
     public int getIndex() {