Refactor the code for loading icons into the PageInfoModel.

base/mac_util.mm

 // Copyright (c) 2010 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 "base/mac_util.h"
 
 #import <Cocoa/Cocoa.h>
 
 #include "base/file_path.h"
 #include "base/logging.h"
@@ skipping 651 matching lines @@
     return false;
 
   scoped_cftyperef<LSSharedFileListItemRef> item(GetLoginItemForApp());
   if (!item.get()) {
     LOG(ERROR) << "Process launched at Login but can't access Login Item List.";
     return false;
   }
   return IsHiddenLoginItem(item);
 }
 
+void NSObjectRetain(void* obj) {
+  id<NSObject> nsobj = static_cast<id<NSObject> >(obj);
+  [nsobj retain];
+}
+
+void NSObjectRelease(void* obj) {
+  id<NSObject> nsobj = static_cast<id<NSObject> >(obj);
+  [nsobj release];
+}
+
 }  // namespace mac_util