ABANDONED CL: Introducing a compile-time-safe SavePackageId type.

content/browser/download/save_types.h

 // 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.
 
 #ifndef CONTENT_BROWSER_DOWNLOAD_SAVE_TYPES_H_
 #define CONTENT_BROWSER_DOWNLOAD_SAVE_TYPES_H_
 
 #include <string>
 #include <utility>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/files/file_path.h"
+#include "base/id_type.h"
 #include "url/gurl.h"
 
 namespace content {
+
+class SavePackage;
+using SavePackageId = base::IdType<SavePackage, int, 0>;
+
 typedef std::vector<std::pair<int, base::FilePath> > FinalNameList;
 typedef std::vector<int> SaveIDList;
 
 // This structure is used to handle and deliver some info
 // when processing each save item job.
 struct SaveFileCreateInfo {
   enum SaveFileSource {
     // This type indicates the source is not set.
     SAVE_FILE_FROM_UNKNOWN = -1,
     // This type indicates the save item needs to be retrieved from the network.
@@ skipping 19 matching lines @@
   // The local file path of saved file.
   base::FilePath path;
   // Original URL of the saved resource.
   GURL url;
   // Final URL of the saved resource since some URL might be redirected.
   GURL final_url;
   // The unique identifier for saving job, assigned at creation by
   // the SaveFileManager for its internal record keeping.
   int save_id;
   // ID of SavePackage object.
-  int save_package_id;
+  SavePackageId save_package_id;
   // IDs for looking up the contents we are associated with.
   int render_process_id;
   int render_frame_routing_id;
   // Handle for informing the ResourceDispatcherHost of a UI based cancel.
   int request_id;
   // Disposition info from HTTP response.
   std::string content_disposition;
   // Total bytes of saved file.
   int64 total_bytes;
   // Source type of saved file.
   SaveFileSource save_source;
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_SAVE_TYPES_H_