[ObjC ARC] Converts ios/chrome/browser/first_run:first_run to ARC.Automatically generated ARCMigr…

ios/chrome/browser/first_run/first_run.mm

 // Copyright 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 "ios/chrome/browser/first_run/first_run.h"
 
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
 #include "base/path_service.h"
 #include "components/pref_registry/pref_registry_syncable.h"
 #include "ios/chrome/browser/chrome_paths.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 namespace {
 
 // The absence of kSentinelFile file will tell us it is a first run.
 const base::FilePath::CharType kSentinelFile[] = FILE_PATH_LITERAL("First Run");
 
 // RLZ ping delay pref name.
 const char kPingDelayPrefName[] = "distribution.ping_delay";
 
 }  // namespace
 
@@ skipping 45 matching lines @@
 // static
 const char* FirstRun::GetPingDelayPrefName() {
   return kPingDelayPrefName;
 }
 
 // static
 void FirstRun::RegisterProfilePrefs(
     user_prefs::PrefRegistrySyncable* registry) {
   registry->RegisterIntegerPref(GetPingDelayPrefName(), 0);
 }