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

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

Index: ash/common/system/chromeos/ime_menu/ime_list_view.h
diff --git a/ash/common/system/chromeos/ime_menu/ime_list_view.h b/ash/common/system/chromeos/ime_menu/ime_list_view.h
index 9a1c7f1fd755560290e5edaa449311ceeaaf6f84..35ce9b503ac97ba25e40390558c1587123cbf43d 100644
--- a/ash/common/system/chromeos/ime_menu/ime_list_view.h
+++ b/ash/common/system/chromeos/ime_menu/ime_list_view.h
@@ -22,12 +22,13 @@ class ImeListView : public TrayDetailsView {
     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,