TabContents -> WebContentsImpl, part 9.

content/browser/download/download_item_impl.h

 // Copyright (c) 2012 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 CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_
 #define CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_
 #pragma once
 
 #include <string>
 
@@ skipping 308 matching lines @@
 
   // Last reason.
   content::DownloadInterruptReason last_reason_;
 
   // Start time for recording statistics.
   base::TimeTicks start_tick_;
 
   // The current state of this download.
   DownloadState state_;
 
-  // The views of this item in the download shelf and download tab.
+  // The views of this item in the download shelf and download contents.
   ObserverList<Observer> observers_;
 
   // Time the download was started.
   base::Time start_time_;
 
   // Time the download completed.
   base::Time end_time_;
 
   // Our persistent store handle.
   int64 db_handle_;
@@ skipping 46 matching lines @@
   // are owned by the DownloadItemImpl.
   std::map<const void*, ExternalData*> external_data_map_;
 
   // Net log to use for this download.
   const net::BoundNetLog bound_net_log_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadItemImpl);
 };
 
 #endif  // CONTENT_BROWSER_DOWNLOAD_DOWNLOAD_ITEM_IMPL_H_