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

content/browser/loader/resource_dispatcher_host_impl.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.
 
 // See http://dev.chromium.org/developers/design-documents/multi-process-resource-loading
 
 #include "content/browser/loader/resource_dispatcher_host_impl.h"
 
 #include <stddef.h>
 #include <algorithm>
@@ skipping 1761 matching lines @@
   // The ResourceDispatcherHost may have already been shut down.
   // See http://crbug.com/455098
   if (!scheduler_)
     return;
   scheduler_->OnAudibilityChanged(child_id, route_id, is_playing);
 }
 
 // This function is only used for saving feature.
 void ResourceDispatcherHostImpl::BeginSaveFile(const GURL& url,
                                                const Referrer& referrer,
-                                               int save_item_id,
-                                               int save_package_id,
+                                               SaveItemId save_item_id,
+                                               SavePackageId save_package_id,
                                                int child_id,
                                                int render_view_route_id,
                                                int render_frame_route_id,
                                                ResourceContext* context) {
   if (is_shutdown_)
     return;
 
   // http://crbug.com/90971
   char url_buf[128];
   base::strlcpy(url_buf, url.spec().c_str(), arraysize(url_buf));
@@ skipping 742 matching lines @@
     load_flags |= net::LOAD_PREFETCH;
   }
 
   if (is_sync_load)
     load_flags |= net::LOAD_IGNORE_LIMITS;
 
   return load_flags;
 }
 
 }  // namespace content