ChromeOS MD-OOBE: Add HID detection screen.

chrome/browser/ui/webui/chromeos/login/oobe_ui.h

 // Copyright (c) 2011 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 CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_OOBE_UI_H_
 #define CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_OOBE_UI_H_
 
 #include <map>
 #include <memory>
 #include <string>
@@ skipping 141 matching lines @@
   const std::string& display_type() const { return display_type_; }
 
   SigninScreenHandler* signin_screen_handler_for_test() {
     return signin_screen_handler_;
   }
 
   NetworkStateInformer* network_state_informer_for_test() const {
     return network_state_informer_.get();
   }
 
+  // Does ReloadContent() if needed (for example, if material design mode has
+  // changed).
+  void UpdateLocalizedStringsIfNeeded();
+
  private:
   void AddScreenHandler(std::unique_ptr<BaseScreenHandler> handler);
 
   // CoreOobeHandler::Delegate implementation:
   void OnCurrentScreenChanged(OobeScreen screen) override;
 
   // Type of UI.
   std::string display_type_;
 
   // Reference to NetworkStateInformer that handles changes in network
@@ skipping 56 matching lines @@
   // Id of the current oobe/login screen.
   OobeScreen current_screen_ = OobeScreen::SCREEN_UNKNOWN;
 
   // Id of the previous oobe/login screen.
   OobeScreen previous_screen_ = OobeScreen::SCREEN_UNKNOWN;
 
   // Flag that indicates whether JS part is fully loaded and ready to accept
   // calls.
   bool ready_ = false;
 
+  // This flag stores material-design mode (on/off) of currently displayed UI.
+  // If different version of UI is required, UI is updated.
+  bool oobe_ui_md_mode_ = false;
+
   // Callbacks to notify when JS part is fully loaded and ready to accept calls.
   std::vector<base::Closure> ready_callbacks_;
 
   // List of registered observers.
   base::ObserverList<Observer> observer_list_;
 
   // Observer of CrosSettings watching the kRebootOnShutdown policy.
   std::unique_ptr<ShutdownPolicyHandler> shutdown_policy_handler_;
 
   std::unique_ptr<ash::ScreenDimmer> screen_dimmer_;
 
   DISALLOW_COPY_AND_ASSIGN(OobeUI);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_UI_WEBUI_CHROMEOS_LOGIN_OOBE_UI_H_