Fix regression where no IMEs appear in the opt-in IME menu

ash/common/system/chromeos/ime_menu/ime_list_view.h

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef ASH_COMMON_SYSTEM_CHROMEOS_IME_MENU_IME_LIST_VIEW_H_
 #define ASH_COMMON_SYSTEM_CHROMEOS_IME_MENU_IME_LIST_VIEW_H_
 
 #include "ash/common/system/tray/ime_info.h"
 #include "ash/common/system/tray/tray_details_view.h"
 #include "ui/views/controls/button/button.h"
 
 namespace ash {
 class MaterialKeyboardStatusRowView;
 
 // The detailed view for showing IME list.
 class ImeListView : public TrayDetailsView {
  public:
   enum SingleImeBehavior {
     // Shows the IME menu if there's only one IME in system.
     SHOW_SINGLE_IME,
     // Hides the IME menu if there's only one IME in system.
     HIDE_SINGLE_IME
   };
 
-  ImeListView(SystemTrayItem* owner,
-              bool show_keyboard_toggle,
-              SingleImeBehavior single_ime_behavior);
+  ImeListView(SystemTrayItem* owner);
 
   ~ImeListView() override;
 
+  // Initializes the contents of a newly-instantiated ImeListView.
+  void Init(bool show_keyboard_toggle, SingleImeBehavior single_ime_behavior);
+
   // Updates the view.
   virtual void Update(const IMEInfoList& list,
                       const IMEPropertyInfoList& property_list,
                       bool show_keyboard_toggle,
                       SingleImeBehavior single_ime_behavior);
 
   // Removes (and destroys) all child views.
   virtual void ResetImeListView();
 
   // Closes the view.
@@ skipping 67 matching lines @@
 
   // The item view of the current selected IME.
   views::View* current_ime_view_;
 
   DISALLOW_COPY_AND_ASSIGN(ImeListView);
 };
 
 }  // namespace ash
 
 #endif  // ASH_COMMON_SYSTEM_CHROMEOS_IME_MENU_IME_LIST_VIEW_H_