Reland DownloadItem::Observer::OnDownloadDestroyed() replaces DownloadItem::REMOVING

content/browser/download/save_package.h

Index: content/browser/download/save_package.h
diff --git a/content/browser/download/save_package.h b/content/browser/download/save_package.h
index 2343843869ed286fde09a1b8a2dfbf7e2aed3a22..2657959a00fa6bcf4db792c3376f761348724d40 100644
--- a/content/browser/download/save_package.h
+++ b/content/browser/download/save_package.h
@@ -145,8 +145,7 @@ class CONTENT_EXPORT SavePackage
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
 
   // content::DownloadItem::Observer implementation.
-  virtual void OnDownloadUpdated(content::DownloadItem* download) OVERRIDE;
-  virtual void OnDownloadOpened(content::DownloadItem* download) OVERRIDE {}
+  virtual void OnDownloadDestructed(content::DownloadItem* download) OVERRIDE;
 
   // Update the download history of this item upon completion.
   void FinalizeDownloadEntry();