Making BrowserNavigator open file browser singleton tab respecting URLs ref value

chrome/browser/ui/browser.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_BROWSER_H_
 #define CHROME_BROWSER_UI_BROWSER_H_
 #pragma once
 
 #include <map>
 #include <set>
@@ skipping 431 matching lines @@
 
   // Navigate to an index in the tab history, opening a new tab depending on the
   // disposition.
   bool NavigateToIndexWithDisposition(int index, WindowOpenDisposition disp);
 
   // Show a given a URL. If a tab with the same URL (ignoring the ref) is
   // already visible in this browser, it becomes selected. Otherwise a new tab
   // is created.
   void ShowSingletonTab(const GURL& url);
 
+  // Same as ShowSingletonTab, but does not ignore ref.
+  void ShowSingletonTabRespectRef(const GURL& url);
+
   // As ShowSingletonTab, but if the current tab is the new tab page or
   // about:blank, then overwrite it with the passed contents.
   void ShowSingletonTabOverwritingNTP(const browser::NavigateParams& params);
 
   // Creates a NavigateParams struct for a singleton tab navigation.
   browser::NavigateParams GetSingletonTabNavigateParams(const GURL& url);
 
   // Invoked when the fullscreen state of the window changes.
   // BrowserWindow::SetFullscreen invokes this after the window has become
   // fullscreen.
@@ skipping 814 matching lines @@
 
   scoped_ptr<InstantController> instant_;
   scoped_ptr<InstantUnloadHandler> instant_unload_handler_;
 
   BookmarkBar::State bookmark_bar_state_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_