Removal of drag window to user tray icon functionality

ash/system/tray/system_tray.h

Index: ash/system/tray/system_tray.h
diff --git a/ash/system/tray/system_tray.h b/ash/system/tray/system_tray.h
index abbbbd694cf7876a25d57729c518ff5d70008cd0..7c5aa4f743783147ed18b0b8a6acfc309bb72c9d 100644
--- a/ash/system/tray/system_tray.h
+++ b/ash/system/tray/system_tray.h
@@ -56,9 +56,6 @@ class ASH_EXPORT SystemTray : public internal::TrayBackgroundView,
   // Returns all tray items that has been added to system tray.
   const std::vector<SystemTrayItem*>& GetTrayItems() const;
 
-  // Returns all tray user items that were added to the system tray.
-  const std::vector<internal::TrayUser*>& GetTrayUserItems() const;
-
   // Shows the default view of all items.
   void ShowDefaultView(BubbleCreationType creation_type);
 
@@ -154,10 +151,6 @@ class ASH_EXPORT SystemTray : public internal::TrayBackgroundView,
   // Get the tray item view (or NULL) for a given |tray_item| in a unit test.
   views::View* GetTrayItemViewForTest(SystemTrayItem* tray_item);
 
-  // Add a tray user item for testing purposes. Note: The passed |tray_user|
-  // will be owned by the SystemTray after the call.
-  void AddTrayUserItemForTest(internal::TrayUser* tray_user);
-
   // Gets tray_date_ for browser tests.
   internal::TrayDate* GetTrayDateForTesting() const;
 
@@ -209,10 +202,6 @@ class ASH_EXPORT SystemTray : public internal::TrayBackgroundView,
   // Owned items.
   ScopedVector<SystemTrayItem> items_;
 
-  // User items - note, this is a subset of the |items_| list. Note that no
-  // item in this list needs to be deleted.
-  std::vector<internal::TrayUser*> user_items_;
-
   // Pointers to members of |items_|.
   SystemTrayItem* detailed_item_;
   std::vector<SystemTrayItem*> notification_items_;