Allowing multiple SaveItems to have same URLs.

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 <algorithm>
 #include <set>
@@ skipping 1676 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,
                                                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];
@@ skipping 23 matching lines @@
   // future, maybe we can use a configuration to configure this behavior.
   request->SetLoadFlags(net::LOAD_PREFERRING_CACHE);
 
   // Since we're just saving some resources we need, disallow downloading.
   ResourceRequestInfoImpl* extra_info =
       CreateRequestInfo(child_id, render_view_route_id,
                         render_frame_route_id, false, context);
   extra_info->AssociateWithRequest(request.get());  // Request takes ownership.
 
   scoped_ptr<ResourceHandler> handler(new SaveFileResourceHandler(
-      request.get(), save_package_id, child_id, render_frame_route_id, url,
-      save_file_manager_.get()));
+      request.get(), save_item_id, save_package_id, child_id,
+      render_frame_route_id, url, save_file_manager_.get()));
 
   BeginRequestInternal(request.Pass(), handler.Pass());
 }
 
 void ResourceDispatcherHostImpl::MarkAsTransferredNavigation(
     const GlobalRequestID& id) {
   GetLoader(id)->MarkAsTransferring();
 }
 
 void ResourceDispatcherHostImpl::CancelTransferringNavigation(
@@ skipping 688 matching lines @@
     load_flags |= net::LOAD_PREFETCH;
   }
 
   if (is_sync_load)
     load_flags |= net::LOAD_IGNORE_LIMITS;
 
   return load_flags;
 }
 
 }  // namespace content