Preliminary work on resuming downloads whose connections have expired.

chrome/browser/views/download_item_view.h

 // Copyright (c) 2010 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 //
 // A ChromeView that implements one download on the Download shelf.
 // Each DownloadItemView contains an application icon, a text label
 // indicating the download's file name, a text label indicating the
 // download's status (such as the number of bytes downloaded so far)
 // and a button for canceling an in progress download, or opening
 // the completed download.
@@ skipping 38 matching lines @@
  public:
   DownloadItemView(DownloadItem* download,
                    DownloadShelfView* parent,
                    BaseDownloadItemModel* model);
   virtual ~DownloadItemView();
 
   // DownloadObserver method
   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();
   virtual void Paint(gfx::Canvas* canvas);
   virtual gfx::Size GetPreferredSize();
   virtual void OnMouseExited(const views::MouseEvent& event);
   virtual void OnMouseMoved(const views::MouseEvent& event);
   virtual bool OnMousePressed(const views::MouseEvent& event);
   virtual void OnMouseReleased(const views::MouseEvent& event, bool canceled);
   virtual bool OnMouseDragged(const views::MouseEvent& event);
@@ skipping 151 matching lines @@
   // This class owns the pointer.
   scoped_ptr<BaseDownloadItemModel> model_;
 
   // Hover animations for our body and drop buttons.
   scoped_ptr<SlideAnimation> body_hover_animation_;
   scoped_ptr<SlideAnimation> drop_hover_animation_;
 
   // 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_;
 
   // Dangerous mode buttons.
   views::NativeButton* save_button_;
   views::NativeButton* discard_button_;
 
   // Dangerous mode label.
   views::Label* dangerous_download_label_;
 
@@ skipping 18 matching lines @@
 
   // If non-NULL, set to true when this object is deleted.
   // (Used when showing the context menu as it runs an inner message loop that
   // might delete us).
   bool* deleted_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadItemView);
 };
 
 #endif  // CHROME_BROWSER_VIEWS_DOWNLOAD_ITEM_VIEW_H__