Chromad: Use DM server reply to determine enrollment type

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

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HOST_PAIRING_SCREEN_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HOST_PAIRING_SCREEN_H_
 
 #include "base/macros.h"
 #include "chrome/browser/chromeos/login/enrollment/enterprise_enrollment_helper.h"
 #include "chrome/browser/chromeos/login/screens/base_screen.h"
@@ skipping 59 matching lines @@
   void OnEnrollmentError(policy::EnrollmentStatus status) override;
   void OnOtherError(EnterpriseEnrollmentHelper::OtherError error) override;
   void OnDeviceEnrolled(const std::string& additional_token) override;
   void OnDeviceAttributeUploadCompleted(bool success) override;
   void OnDeviceAttributeUpdatePermission(bool granted) override;
 
   // Used as a callback for EnterpriseEnrollmentHelper::ClearAuth.
   void OnAuthCleared();
   void OnAnyEnrollmentError();
 
-  Delegate* delegate_;
+  Delegate* delegate_ = nullptr;
 
-  HostPairingScreenActor* actor_;
+  HostPairingScreenActor* actor_ = nullptr;
 
   // Controller performing pairing. Owned by the wizard controller.
-  pairing_chromeos::HostPairingController* remora_controller_;
+  pairing_chromeos::HostPairingController* remora_controller_ = nullptr;
 
   std::unique_ptr<EnterpriseEnrollmentHelper> enrollment_helper_;
 
   // Current stage of pairing process.
-  Stage current_stage_;
+  Stage current_stage_ = pairing_chromeos::HostPairingController::STAGE_NONE;
 
   base::WeakPtrFactory<HostPairingScreen> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(HostPairingScreen);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_SCREENS_HOST_PAIRING_SCREEN_H_