Extract PrefServiceBase into chrome/browser/api. Use in api and autofill.

chrome/browser/policy/cloud_policy_refresh_scheduler.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/policy/cloud_policy_refresh_scheduler.h"
 
 #include <algorithm>
 
 #include "base/task_runner.h"
 #include "chrome/browser/policy/cloud_policy_constants.h"
+#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "content/public/browser/notification_details.h"
 
 namespace policy {
 
 const int64 CloudPolicyRefreshScheduler::kUnmanagedRefreshDelayMs =
     24 * 60 * 60 * 1000;  // 1 day.
 const int64 CloudPolicyRefreshScheduler::kInitialErrorRetryDelayMs =
     5 * 60 * 1000;  // 5 minutes.
 const int64 CloudPolicyRefreshScheduler::kRefreshDelayMinMs =
@@ skipping 175 matching lines @@
   task_runner_->PostDelayedTask(FROM_HERE, refresh_callback_.callback(), delay);
 }
 
 int64 CloudPolicyRefreshScheduler::GetRefreshDelay() {
   return std::min(std::max<int64>(refresh_delay_.GetValue(),
                                   kRefreshDelayMinMs),
                   kRefreshDelayMaxMs);
 }
 
 }  // namespace policy