Remove #pragma once from chrome/browser/policy

chrome/browser/policy/cloud_policy_constants.h

 // Copyright (c) 2012 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_POLICY_CLOUD_POLICY_CONSTANTS_H_
 #define CHROME_BROWSER_POLICY_CLOUD_POLICY_CONSTANTS_H_
-#pragma once
 
 namespace policy {
 
 // Constants related to the device management protocol.
 namespace dm_protocol {
 
 // Name extern constants for URL query parameters.
 extern const char kParamAgent[];
 extern const char kParamAppType[];
 extern const char kParamDeviceID[];
@@ skipping 70 matching lines @@
   DEVICE_MODE_PENDING,     // The device mode is not yet available.
   DEVICE_MODE_NOT_SET,     // The device is not yet enrolled or owned.
   DEVICE_MODE_CONSUMER,    // The device is locally owned as consumer device.
   DEVICE_MODE_ENTERPRISE,  // The device is enrolled as an enterprise device.
   DEVICE_MODE_KIOSK,       // The device is enrolled as kiosk/retail device.
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_CLOUD_POLICY_CONSTANTS_H_