Switch to standard integer types in chrome/browser/, part 3 of 4.

chrome/browser/prefs/browser_prefs.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_PREFS_BROWSER_PREFS_H_
 #define CHROME_BROWSER_PREFS_BROWSER_PREFS_H_
 
+#include "build/build_config.h"
+
 class PrefRegistrySimple;
 class PrefService;
 class Profile;
 
 namespace user_prefs {
 class PrefRegistrySyncable;
 }
 
 namespace chrome {
 
@@ skipping 20 matching lines @@
 
 // Migrate/cleanup deprecated prefs in |profile|'s pref store. Over time, long
 // deprecated prefs should be removed as new ones are added, but this call
 // should never go away (even if it becomes an empty call for some time) as it
 // should remain *the* place to drop deprecated profile prefs at.
 void MigrateObsoleteProfilePrefs(Profile* profile);
 
 }  // namespace chrome
 
 #endif  // CHROME_BROWSER_PREFS_BROWSER_PREFS_H_