MD Downloads: fix incognito markers

chrome/browser/ui/webui/md_downloads/downloads_list_tracker.h

 // Copyright 2015 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_WEBUI_MD_DOWNLOADS_DOWNLOADS_LIST_TRACKER_H_
 #define CHROME_BROWSER_UI_WEBUI_MD_DOWNLOADS_DOWNLOADS_LIST_TRACKER_H_
 
 #include <set>
 
 #include "base/callback_forward.h"
@@ skipping 50 matching lines @@
  protected:
   // Testing constructor.
   DownloadsListTracker(content::DownloadManager* download_manager,
                        content::WebUI* web_ui,
                        base::Callback<bool(const content::DownloadItem&)>);
 
   // Creates a dictionary value that's sent to the page as JSON.
   virtual scoped_ptr<base::DictionaryValue> CreateDownloadItemValue(
       content::DownloadItem* item) const;
 
+  // Exposed for testing.
+  bool IsIncognito(const content::DownloadItem& item) const;
+
   const content::DownloadItem* GetItemForTesting(size_t index) const;
 
  private:
   struct StartTimeComparator {
     bool operator() (const content::DownloadItem* a,
                      const content::DownloadItem* b) const;
   };
   using SortedSet = std::set<content::DownloadItem*, StartTimeComparator>;
 
   // Called by both constructors to initialize common state.
@@ skipping 35 matching lines @@
 
   SortedSet sorted_visible_items_;
 
   // Current search terms.
   std::vector<base::string16> search_terms_;
 
   DISALLOW_COPY_AND_ASSIGN(DownloadsListTracker);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_MD_DOWNLOADS_DOWNLOADS_LIST_TRACKER_H_