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

chrome/browser/download/download_item.h

Index: chrome/browser/download/download_item.h
diff --git a/chrome/browser/download/download_item.h b/chrome/browser/download/download_item.h
index 1a1b6279a4c1b164231e1cf7fb6ec30dcad68a79..dc6ed2a5b867eaef1c1a5fb1e4a90e758297edb1 100644
--- a/chrome/browser/download/download_item.h
+++ b/chrome/browser/download/download_item.h
@@ -192,6 +192,10 @@ class DownloadItem {
   }
   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
@@ -293,6 +297,9 @@ class DownloadItem {
   // 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);
 };