Add ImeMenuTray element.

ash/system/status_area_widget.h

Index: ash/system/status_area_widget.h
diff --git a/ash/system/status_area_widget.h b/ash/system/status_area_widget.h
index ce4eeb0fe8ad9edfff85fd35eb3d95ec420306a4..69da8326a59c277f191861347089320454799dd6 100644
--- a/ash/system/status_area_widget.h
+++ b/ash/system/status_area_widget.h
@@ -20,6 +20,7 @@ class WebNotificationTray;
 class WmShelf;
 class WmWindow;
 #if defined(OS_CHROMEOS)
+class ImeMenuTray;
 class LogoutButtonTray;
 class VirtualKeyboardTray;
 #endif
@@ -79,6 +80,7 @@ class ASH_EXPORT StatusAreaWidget : public views::Widget {
 #if defined(OS_CHROMEOS)
   void AddLogoutButtonTray();
   void AddVirtualKeyboardTray();
+  void AddImeMenuTray();
 #endif
   void AddOverviewButtonTray();
 
@@ -90,6 +92,7 @@ class ASH_EXPORT StatusAreaWidget : public views::Widget {
 #if defined(OS_CHROMEOS)
   LogoutButtonTray* logout_button_tray_;
   VirtualKeyboardTray* virtual_keyboard_tray_;
+  ImeMenuTray* ime_menu_tray_;
 #endif
   LoginStatus login_status_;