Example of usage of new features of context and screen.

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

Index: chrome/browser/ui/webui/chromeos/login/oobe_ui.h
diff --git a/chrome/browser/ui/webui/chromeos/login/oobe_ui.h b/chrome/browser/ui/webui/chromeos/login/oobe_ui.h
index ba12861332255f5a3c938d01ce583a0f14dd36cf..4d0c36382cba14d6d77babd01158a2e1a6f8ccd7 100644
--- a/chrome/browser/ui/webui/chromeos/login/oobe_ui.h
+++ b/chrome/browser/ui/webui/chromeos/login/oobe_ui.h
@@ -23,6 +23,7 @@ class DictionaryValue;
 namespace chromeos {
 class AppLaunchSplashScreenActor;
 class BaseScreenHandler;
+class ControllerPairingScreenActor;
 class ErrorScreenHandler;
 class KioskAppMenuHandler;
 class KioskEnableScreenActor;
@@ -81,13 +82,12 @@ class OobeUI : public OobeDisplay,
   static const char kScreenConfirmPassword[];
   static const char kScreenFatalError[];
   static const char kScreenHIDDetection[];
+  static const char kScreenControllerPairing[];
 
   OobeUI(content::WebUI* web_ui, const GURL& url);
   virtual ~OobeUI();
 
   // OobeDisplay implementation:
-  virtual void ShowScreen(WizardScreen* screen) OVERRIDE;
-  virtual void HideScreen(WizardScreen* screen) OVERRIDE;
   virtual CoreOobeActor* GetCoreOobeActor() OVERRIDE;
   virtual UpdateScreenActor* GetUpdateScreenActor() OVERRIDE;
   virtual NetworkScreenActor* GetNetworkScreenActor() OVERRIDE;
@@ -110,6 +110,8 @@ class OobeUI : public OobeDisplay,
   virtual bool IsJSReady(const base::Closure& display_is_ready_callback)
       OVERRIDE;
   virtual HIDDetectionScreenActor* GetHIDDetectionScreenActor() OVERRIDE;
+  virtual ControllerPairingScreenActor* GetControllerPairingScreenActor()
+      OVERRIDE;
 
   // Collects localized strings from the owned handlers.
   void GetLocalizedStrings(base::DictionaryValue* localized_strings);
@@ -190,6 +192,7 @@ class OobeUI : public OobeDisplay,
   LocallyManagedUserCreationScreenHandler*
       locally_managed_user_creation_screen_actor_;
   AppLaunchSplashScreenActor* app_launch_splash_screen_actor_;
+  ControllerPairingScreenActor* controller_pairing_screen_actor_;
 
   // Reference to ErrorScreenHandler that handles error screen
   // requests and forward calls from native code to JS side.