Add interface to CancelableRequest that allows use of base::Callback<>.

chrome/browser/ui/views/download/download_item_view.cc

 // 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.
 
 #include "chrome/browser/ui/views/download/download_item_view.h"
 
 #include <vector>
 
 #include "base/callback.h"
 #include "base/file_path.h"
@@ skipping 910 matching lines @@
                            base::Time::Now() - creation_time_);
   download_->OpenDownload();
   UpdateAccessibleName();
 }
 
 void DownloadItemView::LoadIcon() {
   IconManager* im = g_browser_process->icon_manager();
   last_download_item_path_ = download_->GetUserVerifiedFilePath();
   im->LoadIcon(last_download_item_path_,
                IconLoader::SMALL, &icon_consumer_,
-               NewCallback(this, &DownloadItemView::OnExtractIconComplete));
+               base::Bind(&DownloadItemView::OnExtractIconComplete,
+                          base::Unretained(this)));
 }
 
 void DownloadItemView::LoadIconIfItemPathChanged() {
   FilePath current_download_path = download_->GetUserVerifiedFilePath();
   if (last_download_item_path_ == current_download_path)
     return;
 
   LoadIcon();
 }
 
@@ skipping 173 matching lines @@
   // If the name has changed, notify assistive technology that the name
   // has changed so they can announce it immediately.
   if (new_name != accessible_name_) {
     accessible_name_ = new_name;
     if (GetWidget()) {
       GetWidget()->NotifyAccessibilityEvent(
           this, ui::AccessibilityTypes::EVENT_NAME_CHANGED, true);
     }
   }
 }