Move ownership of the ControllerPairingController into the WizardController.

chrome/browser/chromeos/login/wizard_controller.cc

Index: chrome/browser/chromeos/login/wizard_controller.cc
diff --git a/chrome/browser/chromeos/login/wizard_controller.cc b/chrome/browser/chromeos/login/wizard_controller.cc
index f9c9ed29b1146bcf6777494594111164e2c0d858..fb4e8f6e8b9337b6849a83b15650965c9914bb37 100644
--- a/chrome/browser/chromeos/login/wizard_controller.cc
+++ b/chrome/browser/chromeos/login/wizard_controller.cc
@@ -73,6 +73,7 @@
 #include "chromeos/settings/cros_settings_names.h"
 #include "chromeos/settings/timezone_settings.h"
 #include "components/crash/app/breakpad_linux.h"
+#include "components/pairing/bluetooth_controller_pairing_controller.h"
 #include "components/user_manager/user_manager.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_types.h"
@@ -362,8 +363,13 @@ WizardScreen* WizardController::CreateScreen(const std::string& screen_name) {
     return new chromeos::AutoEnrollmentCheckScreen(
         this, oobe_display_->GetAutoEnrollmentCheckScreenActor());
   } else if (screen_name == kControllerPairingScreenName) {
+    if (!controller_pairing_controller_) {
+      controller_pairing_controller_.reset(
+          new pairing_chromeos::BluetoothControllerPairingController());
+    }
     return new ControllerPairingScreen(
-        this, oobe_display_->GetControllerPairingScreenActor());
+        this, oobe_display_->GetControllerPairingScreenActor(),
+        controller_pairing_controller_.get());
   } else if (screen_name == kHostPairingScreenName) {
     return new HostPairingScreen(this,
                                  oobe_display_->GetHostPairingScreenActor());