Cosmetic cleanups in chrome/browser/policy/

chrome/browser/policy/user_policy_disk_cache.h

 // Copyright (c) 2011 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_USER_POLICY_DISK_CACHE_H_
 #define CHROME_BROWSER_POLICY_USER_POLICY_DISK_CACHE_H_
 #pragma once
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/weak_ptr.h"
 
-namespace em = enterprise_management;
+namespace enterprise_management {
 
-namespace enterprise_management {
 class CachedCloudPolicyResponse;
+
 }
 
 namespace policy {
 
+namespace em = enterprise_management;
+
 // Handles the on-disk cache file used by UserPolicyCache. This class handles
 // the necessary thread switching and may outlive the associated UserPolicyCache
 // instance.
 class UserPolicyDiskCache
     : public base::RefCountedThreadSafe<UserPolicyDiskCache> {
  public:
   // Indicates the status of a completed load operation.
   enum LoadResult {
     // Policy was loaded successfully.
     LOAD_RESULT_SUCCESS,
@@ skipping 45 matching lines @@
 
   base::WeakPtr<Delegate> delegate_;
   const FilePath backing_file_path_;
 
   DISALLOW_COPY_AND_ASSIGN(UserPolicyDiskCache);
 };
 
 }  // namespace policy
 
 #endif  // CHROME_BROWSER_POLICY_USER_POLICY_DISK_CACHE_H_