Post the task of disabling virtual keyboard

ash/system/ime_menu/ime_menu_tray.h

Index: ash/system/ime_menu/ime_menu_tray.h
diff --git a/ash/system/ime_menu/ime_menu_tray.h b/ash/system/ime_menu/ime_menu_tray.h
index dab69662090a6c4b8f879f8c021a139a19ec0011..1bf5a1abbf79da1b783167096afdf1619ad971d3 100644
--- a/ash/system/ime_menu/ime_menu_tray.h
+++ b/ash/system/ime_menu/ime_menu_tray.h
@@ -96,6 +96,9 @@ class ASH_EXPORT ImeMenuTray : public TrayBackgroundView,
   // Updates the text of the label on the tray.
   void UpdateTrayLabel();
 
+  // Disables the virtual keyboard.
+  void DisableVirtualKeyboard();
+
   // Bubble for default and detailed views.
   std::unique_ptr<TrayBubbleWrapper> bubble_;
   ImeListView* ime_list_view_;
@@ -107,6 +110,8 @@ class ASH_EXPORT ImeMenuTray : public TrayBackgroundView,
   bool keyboard_suppressed_;
   bool show_bubble_after_keyboard_hidden_;
 
+  base::WeakPtrFactory<ImeMenuTray> weak_ptr_factory_;
+
   DISALLOW_COPY_AND_ASSIGN(ImeMenuTray);
 };