Rename the download to its final name only after the download is finished

chrome/browser/download/download_item.h

 // Copyright (c) 2010 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.
 //
 // Each download is represented by a DownloadItem, and all DownloadItems
 // are owned by the DownloadManager which maintains a global list of all
 // downloads. DownloadItems are created when a user initiates a download,
 // and exist for the duration of the browser life time.
 //
 // Download observers:
@@ skipping 174 matching lines @@
   void set_original_name(const FilePath& name) { original_name_ = name; }
   bool save_as() const { return save_as_; }
   bool is_otr() const { return is_otr_; }
   bool is_extension_install() const { return is_extension_install_; }
   bool name_finalized() const { return name_finalized_; }
   void set_name_finalized(bool name_finalized) {
     name_finalized_ = name_finalized;
   }
   bool is_temporary() const { return is_temporary_; }
   void set_is_temporary(bool is_temporary) { is_temporary_ = is_temporary; }
+  bool need_final_rename() const { return need_final_rename_; }
+  void set_need_final_rename(bool need_final_rename) {
+    need_final_rename_ = need_final_rename;
+  }
 
   // Returns the file-name that should be reported to the user, which is
   // file_name_ for safe downloads and original_name_ for dangerous ones with
   // the uniquifier number.
   FilePath GetFileName() const;
 
  private:
   // Internal helper for maintaining consistent received and total sizes.
   void UpdateSize(int64 size);
 
@@ skipping 81 matching lines @@
 
   // True if the item was downloaded for an extension installation.
   bool is_extension_install_;
 
   // True if the filename is finalized.
   bool name_finalized_;
 
   // True if the item was downloaded temporarily.
   bool is_temporary_;
 
+  // True if the file needs final rename.
+  bool need_final_rename_;
+
   DISALLOW_COPY_AND_ASSIGN(DownloadItem);
 };
 
 #endif  // CHROME_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_H_