Introducing SavePackageId and SaveItemId as distinct IdType<...>-based types.

content/browser/download/save_types.cc

 // 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 "content/browser/download/save_types.h"
 
 #include "base/files/file_path.h"
 
 namespace content {
 
 SaveFileCreateInfo::SaveFileCreateInfo(const base::FilePath& path,
                                        const GURL& url,
-                                       int save_item_id,
-                                       int save_package_id,
+                                       SaveItemId save_item_id,
+                                       SavePackageId save_package_id,
                                        int render_process_id,
                                        int render_frame_routing_id,
                                        SaveFileSource save_source)
     : path(path),
       url(url),
       save_item_id(save_item_id),
       save_package_id(save_package_id),
       render_process_id(render_process_id),
       render_frame_routing_id(render_frame_routing_id),
       request_id(-1),
       total_bytes(0),
       save_source(save_source) {}
 
 SaveFileCreateInfo::SaveFileCreateInfo(const GURL& url,
                                        const GURL& final_url,
-                                       int save_item_id,
-                                       int save_package_id,
+                                       SaveItemId save_item_id,
+                                       SavePackageId save_package_id,
                                        int render_process_id,
                                        int render_frame_routing_id,
                                        int request_id,
                                        const std::string& content_disposition,
                                        int64_t total_bytes)
     : url(url),
       final_url(final_url),
       save_item_id(save_item_id),
       save_package_id(save_package_id),
       render_process_id(render_process_id),
       render_frame_routing_id(render_frame_routing_id),
       request_id(request_id),
       content_disposition(content_disposition),
       total_bytes(total_bytes),
       save_source(SaveFileCreateInfo::SAVE_FILE_FROM_NET) {}
 
 SaveFileCreateInfo::~SaveFileCreateInfo() {}
 
 }  // namespace content