Detect removed files and reflect the state in chrome://downloads and the download shelf

chrome/browser/ui/cocoa/download/download_item_cell.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_DOWNLOAD_DOWNLOAD_ITEM_CELL_H_
 #define CHROME_BROWSER_UI_COCOA_DOWNLOAD_DOWNLOAD_ITEM_CELL_H_
 #pragma once
 
 #import "base/mac/cocoa_protocols.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 25 matching lines @@
 
   FilePath downloadPath_;  // stored unelided
   NSString* secondaryTitle_;
   NSFont* secondaryFont_;
   int percentDone_;
   scoped_nsobject<NSAnimation> completionAnimation_;
 
   BOOL isStatusTextVisible_;
   CGFloat titleY_;
   CGFloat statusAlpha_;
+  scoped_nsobject<NSAnimation> showStatusAnimation_;
   scoped_nsobject<NSAnimation> hideStatusAnimation_;
 
   scoped_ptr<ui::ThemeProvider> themeProvider_;
 }
 
 @property(nonatomic, copy) NSString* secondaryTitle;
 @property(nonatomic, retain) NSFont* secondaryFont;
 
 - (void)setStateFromDownload:(BaseDownloadItemModel*)downloadModel;
 
 // Returns if the mouse is over the button part of the cell.
 - (BOOL)isMouseOverButtonPart;
 
 @end
 
 #endif  // CHROME_BROWSER_UI_COCOA_DOWNLOAD_DOWNLOAD_ITEM_CELL_H_