Shift passage of FileStream in downloads system to be by scoped_ptr<>.

content/public/browser/download_url_parameters.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.
 
 #include "content/public/browser/download_url_parameters.h"
 
 #include "base/callback.h"
 #include "content/public/browser/browser_context.h"
 #include "content/public/browser/download_save_info.h"
 #include "content/public/browser/render_process_host.h"
 #include "content/public/browser/render_view_host.h"
 #include "content/public/browser/resource_dispatcher_host.h"
 #include "content/public/browser/web_contents.h"
 #include "googleurl/src/gurl.h"
 
 namespace content {
 
 DownloadUrlParameters::DownloadUrlParameters(
     const GURL& url,
     int render_process_host_id,
     int render_view_host_routing_id,
     ResourceContext* resource_context,
-    const DownloadSaveInfo& save_info)
+    scoped_ptr<DownloadSaveInfo> save_info)
     : content_initiated_(false),
       load_flags_(0),
       method_("GET"),
       post_id_(-1),
       prefer_cache_(false),
       render_process_host_id_(render_process_host_id),
       render_view_host_routing_id_(render_view_host_routing_id),
       resource_context_(resource_context),
       resource_dispatcher_host_(ResourceDispatcherHost::Get()),
-      save_info_(save_info),
+      save_info_(save_info.Pass()),
       url_(url) {
   DCHECK(resource_dispatcher_host_);
 }
 
 DownloadUrlParameters::~DownloadUrlParameters() {
 }
 
 // static
 DownloadUrlParameters* DownloadUrlParameters::FromWebContents(
     WebContents* web_contents,
     const GURL& url,
-    const DownloadSaveInfo& save_info) {
+    scoped_ptr<DownloadSaveInfo> save_info) {
   return new DownloadUrlParameters(
       url,
       web_contents->GetRenderProcessHost()->GetID(),
       web_contents->GetRenderViewHost()->GetRoutingID(),
       web_contents->GetBrowserContext()->GetResourceContext(),
-      save_info);
+      save_info.Pass());
+}
+
+scoped_ptr<DownloadSaveInfo> DownloadUrlParameters::GetSaveInfo() {
+  return save_info_.Pass();
 }
 
 }  // namespace content