Move ownership of HostPairingController from PairingScreen to WizardController.

chrome/browser/chromeos/login/screens/host_pairing_screen.cc

 // Copyright 2014 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 "chrome/browser/chromeos/login/screens/host_pairing_screen.h"
 
 #include "base/command_line.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
-#include "components/pairing/bluetooth_host_pairing_controller.h"
+#include "components/pairing/host_pairing_controller.h"
 
 namespace chromeos {
 
 using namespace host_pairing;
 using namespace pairing_chromeos;
 
-HostPairingScreen::HostPairingScreen(ScreenObserver* observer,
-                                     HostPairingScreenActor* actor)
+HostPairingScreen::HostPairingScreen(
+    ScreenObserver* observer,
+    HostPairingScreenActor* actor,
+    pairing_chromeos::HostPairingController* controller)
     : WizardScreen(observer),
       actor_(actor),
+      controller_(controller),
       current_stage_(HostPairingController::STAGE_NONE) {
   actor_->SetDelegate(this);
-  controller_.reset(new BluetoothHostPairingController());
   controller_->AddObserver(this);
 }
 
 HostPairingScreen::~HostPairingScreen() {
   if (actor_)
     actor_->SetDelegate(NULL);
   controller_->RemoveObserver(this);
 }
 
 void HostPairingScreen::CommitContextChanges() {
@@ skipping 90 matching lines @@
   // TODO(zork,achuith): Enroll device, send error on error.
   // (http://crbug.com/374990)
 }
 
 void HostPairingScreen::OnActorDestroyed(HostPairingScreenActor* actor) {
   if (actor_ == actor)
     actor_ = NULL;
 }
 
 }  // namespace chromeos