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

content/browser/download/download_item_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.
 
 // File method ordering: Methods in this file are in the same order
 // as in download_item_impl.h, with the following exception: The public
 // interfaces DelayedDownloadOpened, OnDownloadTargetDetermined, and
 // OnDownloadCompleting are placed in chronological order with the other
 // (private) routines that together define a DownloadItem's state transitions
 // as the download progresses.  See "Download progression cascade" later in
@@ skipping 165 matching lines @@
     const DownloadCreateInfo& info,
     scoped_ptr<DownloadRequestHandleInterface> request_handle,
     const net::BoundNetLog& bound_net_log)
     : request_handle_(request_handle.Pass()),
       download_id_(info.download_id),
       target_disposition_(
           (info.prompt_user_for_save_location) ?
               TARGET_DISPOSITION_PROMPT : TARGET_DISPOSITION_OVERWRITE),
       url_chain_(info.url_chain),
       referrer_url_(info.referrer_url),
-      suggested_filename_(UTF16ToUTF8(info.save_info.suggested_name)),
-      forced_file_path_(info.save_info.file_path),
+      suggested_filename_(UTF16ToUTF8(info.save_info->suggested_name)),
+      forced_file_path_(info.save_info->file_path),
       transition_type_(info.transition_type),
       has_user_gesture_(info.has_user_gesture),
       content_disposition_(info.content_disposition),
       mime_type_(info.mime_type),
       original_mime_type_(info.original_mime_type),
       referrer_charset_(info.referrer_charset),
       remote_address_(info.remote_address),
       total_bytes_(info.total_bytes),
       received_bytes_(0),
       bytes_per_sec_(0),
       last_reason_(content::DOWNLOAD_INTERRUPT_REASON_NONE),
       start_tick_(base::TimeTicks::Now()),
       state_(IN_PROGRESS_INTERNAL),
       danger_type_(content::DOWNLOAD_DANGER_TYPE_NOT_DANGEROUS),
       start_time_(info.start_time),
       db_handle_(DownloadItem::kUninitializedHandle),
       delegate_(delegate),
       is_paused_(false),
       open_when_complete_(false),
       file_externally_removed_(false),
       safety_state_(SAFE),
       auto_opened_(false),
       is_persisted_(false),
-      is_temporary_(!info.save_info.file_path.empty()),
+      is_temporary_(!info.save_info->file_path.empty()),
       all_data_saved_(false),
       opened_(false),
       open_enabled_(true),
       delegate_delayed_complete_(false),
       bound_net_log_(bound_net_log),
       ALLOW_THIS_IN_INITIALIZER_LIST(weak_ptr_factory_(this)) {
   delegate_->Attach();
   Init(true /* actively downloading */,
        download_net_logs::SRC_NEW_DOWNLOAD);
 
@@ skipping 1058 matching lines @@
       return "COMPLETE";
     case CANCELLED_INTERNAL:
       return "CANCELLED";
     case INTERRUPTED_INTERNAL:
       return "INTERRUPTED";
     default:
       NOTREACHED() << "Unknown download state " << state;
       return "unknown";
   };
 }