Convert ARRAYSIZE_UNSAFE -> arraysize in chrome/browser/.

chrome/browser/prefs/chrome_pref_service_factory.cc

 // 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.
 
 #include "chrome/browser/prefs/chrome_pref_service_factory.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 234 matching lines @@
       GROUP_ENFORCE_DEFAULT;
 #else
       GROUP_NO_ENFORCEMENT;
 #endif
   bool group_determined_from_trial = false;
   base::FieldTrial* trial =
       base::FieldTrialList::Find(
           chrome_prefs::internals::kSettingsEnforcementTrialName);
   if (trial) {
     const std::string& group_name = trial->group_name();
-    // ARRAYSIZE_UNSAFE must be used since the array is declared locally; it is
-    // only unsafe because it could not trigger a compile error on some
-    // non-array pointer types; this is fine since kEnforcementLevelMap is
-    // clearly an array.
-    for (size_t i = 0; i < ARRAYSIZE_UNSAFE(kEnforcementLevelMap); ++i) {
+    for (size_t i = 0; i < arraysize(kEnforcementLevelMap); ++i) {
       if (kEnforcementLevelMap[i].group_name == group_name) {
         enforcement_group = kEnforcementLevelMap[i].group;
         group_determined_from_trial = true;
         break;
       }
     }
   }
   UMA_HISTOGRAM_BOOLEAN("Settings.EnforcementGroupDeterminedFromTrial",
                         group_determined_from_trial);
   return enforcement_group;
@@ skipping 247 matching lines @@
 
 void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry) {
   ProfilePrefStoreManager::RegisterProfilePrefs(registry);
 }
 
 void RegisterPrefs(PrefRegistrySimple* registry) {
   ProfilePrefStoreManager::RegisterPrefs(registry);
 }
 
 }  // namespace chrome_prefs