Preliminary work on resuming downloads whose connections have expired.

chrome/browser/views/download_item_view.h

Index: chrome/browser/views/download_item_view.h
diff --git a/chrome/browser/views/download_item_view.h b/chrome/browser/views/download_item_view.h
index 91fc7f64a89e1d83b0ee88d078a5e0c6f2d75ab7..489f01faf145e87f81930c39d38a8d4404493e57 100644
--- a/chrome/browser/views/download_item_view.h
+++ b/chrome/browser/views/download_item_view.h
@@ -56,6 +56,7 @@ class DownloadItemView : public views::ButtonListener,
   virtual void OnDownloadUpdated(DownloadItem* download);
   virtual void OnDownloadFileCompleted(DownloadItem* download) { }
   virtual void OnDownloadOpened(DownloadItem* download);
+  virtual void OnDownloadInterrupted(DownloadItem* download) { }
 
   // View overrides
   virtual void Layout();
@@ -227,6 +228,9 @@ class DownloadItemView : public views::ButtonListener,
   // Animation for download complete.
   scoped_ptr<SlideAnimation> complete_animation_;
 
+  // Animation for download interrupted.
+  scoped_ptr<SlideAnimation> interrupted_animation_;
+
   // Progress animation
   base::RepeatingTimer<DownloadItemView> progress_timer_;