gtk/bookmarks: Cache BookmarkModel in BookmarkBubbleGtk.

chrome/browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h

Index: chrome/browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h
diff --git a/chrome/browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h b/chrome/browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h
index 7d9cf53c0e76b7d8c0f76dac82a7062828e21653..38febabf5cdc6d8e9b193f1bef6bb92eebd42b7c 100644
--- a/chrome/browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h
+++ b/chrome/browser/ui/gtk/bookmarks/bookmark_bubble_gtk.h
@@ -27,6 +27,7 @@
 #include "googleurl/src/gurl.h"
 #include "ui/base/gtk/gtk_signal.h"
 
+class BookmarkModel;
 class BookmarkNode;
 class Profile;
 class RecentlyUsedFoldersComboModel;
@@ -81,9 +82,13 @@ class BookmarkBubbleGtk : public BubbleDelegateGtk,
 
   // The URL of the bookmark.
   GURL url_;
+
   // Our current profile (used to access the bookmark system).
   Profile* profile_;
 
+  // This is owned by the Profile.
+  BookmarkModel* model_;
+
   // Provides colors and stuff.
   GtkThemeService* theme_service_;