Put the dropdown menu button on the linux download shelf....

chrome/browser/gtk/download_item_gtk.h

Index: chrome/browser/gtk/download_item_gtk.h
===================================================================
--- chrome/browser/gtk/download_item_gtk.h	(revision 10937)
+++ chrome/browser/gtk/download_item_gtk.h	(working copy)
@@ -14,20 +14,26 @@
 
 class DownloadItemGtk {
  public:
-  // DownloadItemGtk takes ownership of |download_item_model|;
+  // DownloadItemGtk takes ownership of |download_item_model|.
   DownloadItemGtk(BaseDownloadItemModel* download_item_model,
                   GtkWidget* parent_shelf);
 
  private:
   static void InitNineBoxes();
 
-  static gboolean OnBodyExpose(GtkWidget* widget, GdkEventExpose* e,
-                               DownloadItemGtk* download_item);
+  static gboolean OnExpose(GtkWidget* widget, GdkEventExpose* e,
+                           DownloadItemGtk* download_item);
 
-  static NineBox* nine_box_normal_;
-  static NineBox* nine_box_prelight_;
-  static NineBox* nine_box_active_;
+  // Nineboxes for the body area.
+  static NineBox* body_nine_box_normal_;
+  static NineBox* body_nine_box_prelight_;
+  static NineBox* body_nine_box_active_;
 
+  // Nineboxes for the menu button.
+  static NineBox* menu_nine_box_normal_;
+  static NineBox* menu_nine_box_prelight_;
+  static NineBox* menu_nine_box_active_;
+
   // The widget that contains the body and menu dropdown.
   GtkWidget* hbox_;
 
@@ -35,6 +41,9 @@
   // animation.
   GtkWidget* body_;
 
+  // The widget that creates a dropdown menu when pressed.
+  GtkWidget* menu_button_;
+
   // The download item model we represent.
   scoped_ptr<BaseDownloadItemModel> download_model_;