Split PrefService into PrefService, PrefServiceSimple and PrefServiceSyncable.

chrome/browser/ui/cocoa/task_manager_mac.mm

 // 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/ui/cocoa/task_manager_mac.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/mac/bundle_locations.h"
 #include "base/mac/mac_util.h"
 #include "base/sys_string_conversions.h"
 #include "chrome/browser/browser_process.h"
+#include "chrome/browser/prefs/pref_service.h"
 #import "chrome/browser/ui/cocoa/window_size_autosaver.h"
 #include "chrome/browser/ui/host_desktop.h"
 #include "chrome/common/pref_names.h"
 #include "grit/generated_resources.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 #include "ui/gfx/image/image_skia.h"
 
 namespace {
 
@@ skipping 630 matching lines @@
       // "Task Manager" so close the existing window and fall through to
       // open a new one.
       [[instance_->window_controller_ window] close];
     }
   }
   // Create a new instance.
   instance_ = new TaskManagerMac(TaskManager::GetInstance(),
                                  highlight_background_resources);
   instance_->model_->StartUpdating();
 }