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

chrome/browser/download/download_file.h

Index: chrome/browser/download/download_file.h
diff --git a/chrome/browser/download/download_file.h b/chrome/browser/download/download_file.h
index 97057a6d7cb769428af44cf7c59564acfe6d3b4d..6fd605efdc849aa5695e6dbd0acb068dbabfbe3f 100644
--- a/chrome/browser/download/download_file.h
+++ b/chrome/browser/download/download_file.h
@@ -26,7 +26,7 @@ struct DownloadCreateInfo;
 class DownloadFile {
  public:
   explicit DownloadFile(const DownloadCreateInfo* info);
-  ~DownloadFile();
+  virtual ~DownloadFile();
 
   bool Initialize();
 
@@ -37,11 +37,17 @@ class DownloadFile {
   void Cancel();
 
   // Rename the download file. Returns 'true' if the rename was successful.
-  bool Rename(const FilePath& full_path);
+  // path_renamed_ is set true only if |is_final_rename| is true.
+  // Marked virtual for testing.
+  virtual bool Rename(const FilePath& full_path, bool is_final_rename);
 
   // Informs the OS that this file came from the internet.
   void AnnotateWithSourceInformation();
 
+  // Deletes its .crdownload intermediate file.
+  // Marked virtual for testing.
+  virtual void DeleteCrDownload();
+
   // Accessors.
   int64 bytes_so_far() const { return bytes_so_far_; }
   int id() const { return id_; }