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 f8c890595207b18dea66ea44e0052f64339c17f6..4645a556ae53b5615db4b1d9b33de3c28c5be8a3 100644
--- a/content/browser/download/save_package.h
+++ b/content/browser/download/save_package.h
@@ -144,8 +144,7 @@ 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 OnDownloadDestroyed(content::DownloadItem* download) OVERRIDE;
 
   // Update the download history of this item upon completion.
   void FinalizeDownloadEntry();