cros system menu - fix back and settings buttons in IME detailed view.

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

 // 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.
 
 #include "ash/common/system/chromeos/ime_menu/ime_list_view.h"
 
 #include "ash/common/ash_view_ids.h"
 #include "ash/common/material_design/material_design_controller.h"
 #include "ash/common/system/tray/hover_highlight_view.h"
 #include "ash/common/system/tray/ime_info.h"
@@ skipping 381 matching lines @@
         property_map_.find(view);
     if (property == property_map_.end())
       return;
     const std::string key = property->second;
     delegate->ActivateIMEProperty(key);
   }
 
   GetWidget()->Close();
 }
 
-void ImeListView::ButtonPressed(views::Button* sender, const ui::Event& event) {
+void ImeListView::HandleButtonPressed(views::Button* sender,
+                                      const ui::Event& event) {
   DCHECK(material_keyboard_status_view_);
   DCHECK_EQ(sender, material_keyboard_status_view_->toggle());
   WmShell::Get()->ToggleIgnoreExternalKeyboard();
 }
 
 }  // namespace ash