RefCounted types should not have public destructors, content/browser part 1

content/browser/download/drag_download_util.h

Index: content/browser/download/drag_download_util.h
diff --git a/content/browser/download/drag_download_util.h b/content/browser/download/drag_download_util.h
index a65900eafbd3939b3af9b85ebd470c0ac853b01f..b7cdbcdad0d18a68b29dbd8c212625f01de60c3e 100644
--- a/content/browser/download/drag_download_util.h
+++ b/content/browser/download/drag_download_util.h
@@ -45,12 +45,14 @@ net::FileStream* CreateFileStreamForDrop(
 class PromiseFileFinalizer : public ui::DownloadFileObserver {
  public:
   explicit PromiseFileFinalizer(DragDownloadFile* drag_file_downloader);
-  virtual ~PromiseFileFinalizer();
 
   // DownloadFileObserver methods.
   virtual void OnDownloadCompleted(const FilePath& file_path) OVERRIDE;
   virtual void OnDownloadAborted() OVERRIDE;
 
+ protected:
+  virtual ~PromiseFileFinalizer();
+
  private:
   void Cleanup();