Experience sampling instrumentation for dangerous downloads warnings

chrome/browser/ui/views/download/download_item_view.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.
 //
 // 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 20 matching lines @@
 #include "content/public/browser/download_manager.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/font_list.h"
 #include "ui/views/context_menu_controller.h"
 #include "ui/views/controls/button/button.h"
 #include "ui/views/view.h"
 
 class DownloadShelfView;
 class DownloadShelfContextMenuView;
 
+namespace extensions {
+class ExperienceSamplingEvent;
+}
+
 namespace gfx {
 class Image;
 class ImageSkia;
 class SlideAnimation;
 }
 
 namespace views {
 class Label;
 class LabelButton;
 }
@@ skipping 281 matching lines @@
   scoped_ptr<DownloadShelfContextMenuView> context_menu_;
 
   // The name of this view as reported to assistive technology.
   base::string16 accessible_name_;
 
   // The icon loaded in the download shelf is based on the file path of the
   // item.  Store the path used, so that we can detect a change in the path
   // and reload the icon.
   base::FilePath last_download_item_path_;
 
+  // ExperienceSampling: This tracks dangerous/malicious downloads warning UI
+  // and the user's decisions about it.
+  scoped_ptr<extensions::ExperienceSamplingEvent> sampling_event_;
+
   DISALLOW_COPY_AND_ASSIGN(DownloadItemView);
 };
 
 #endif  // CHROME_BROWSER_UI_VIEWS_DOWNLOAD_DOWNLOAD_ITEM_VIEW_H__