Move ownership of HostPairingController from PairingScreen to WizardController.

chrome/browser/chromeos/login/wizard_controller.h

Index: chrome/browser/chromeos/login/wizard_controller.h
diff --git a/chrome/browser/chromeos/login/wizard_controller.h b/chrome/browser/chromeos/login/wizard_controller.h
index 7ba471d0137f8b4f983197d8160f16767b232b76..5e4d3cbe468fed449eb6fb013c0cf6724e985833 100644
--- a/chrome/browser/chromeos/login/wizard_controller.h
+++ b/chrome/browser/chromeos/login/wizard_controller.h
@@ -31,6 +31,7 @@ class DictionaryValue;
 
 namespace pairing_chromeos {
 class ControllerPairingController;
+class HostPairingController;
 }
 
 namespace chromeos {
@@ -384,6 +385,9 @@ class WizardController : public ScreenObserver, public ScreenManager {
   scoped_ptr<pairing_chromeos::ControllerPairingController>
       controller_pairing_controller_;
 
+  // Pairing controller for remora devices.
+  scoped_ptr<pairing_chromeos::HostPairingController> host_pairing_controller_;
+
   // Maps screen ids to last time of their shows.
   base::hash_map<std::string, base::Time> screen_show_times_;