Add bookmark promo to NTP on first run.

chrome/browser/dom_ui/new_tab_ui.h

Index: chrome/browser/dom_ui/new_tab_ui.h
===================================================================
--- chrome/browser/dom_ui/new_tab_ui.h	(revision 52977)
+++ chrome/browser/dom_ui/new_tab_ui.h	(working copy)
@@ -8,6 +8,7 @@
 #include <string>
 
 #include "base/gtest_prod_util.h"
+#include "chrome/browser/bookmarks/bookmark_model_observer.h"
 #include "chrome/browser/dom_ui/dom_ui.h"
 #include "chrome/browser/dom_ui/chrome_url_data_manager.h"
 #include "chrome/common/notification_registrar.h"
@@ -19,7 +20,8 @@
 
 // The TabContents used for the New Tab page.
 class NewTabUI : public DOMUI,
-                 public NotificationObserver {
+                 public NotificationObserver,
+                 public BookmarkModelObserver {
  public:
   explicit NewTabUI(TabContents* manager);
   ~NewTabUI();
@@ -29,6 +31,29 @@
   virtual void RenderViewCreated(RenderViewHost* render_view_host);
   virtual void RenderViewReused(RenderViewHost* render_view_host);
 
+  // Overridden from BookmarkModelObserver so we can remove the promo for
+  // importing bookmarks if the user adds a bookmark in any way.
+  virtual void BookmarkNodeAdded(BookmarkModel* model,
+    const BookmarkNode* parent,
+    int index);
+
+  // These methods must be overridden so that the NTP can be a
+  // BookmarkModelObserver.
+  virtual void Loaded(BookmarkModel* model) {}
+  virtual void BookmarkModelBeingDeleted(BookmarkModel* model) {}
+  virtual void BookmarkNodeMoved(BookmarkModel* model,
+    const BookmarkNode* old_parent, int old_index,
+    const BookmarkNode* new_parent, int new_index) {}
+  virtual void BookmarkNodeRemoved(BookmarkModel* model,
+    const BookmarkNode* parent, int old_index,
+    const BookmarkNode* node) {}
+  virtual void BookmarkNodeChanged(BookmarkModel* model,
+    const BookmarkNode* node) {}
+  virtual void BookmarkNodeFavIconLoaded(BookmarkModel* model,
+    const BookmarkNode* node) {}
+  virtual void BookmarkNodeChildrenReordered(BookmarkModel* model,
+    const BookmarkNode* node) {}
+
   static void RegisterUserPrefs(PrefService* prefs);
   static void MigrateUserPrefs(PrefService* prefs, int old_pref_version,
                                int new_pref_version);