DOMUI: Use ShowSingletonTab to open the settings tab.

chrome/browser/ui/browser.h

 // Copyright (c) 2010 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 384 matching lines @@
       bool from_last_session,
       const std::string& extension_app_id,
       SessionStorageNamespace* session_storage_namespace);
 
   // 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);
+  // is created. If |ignore_path| is true, the paths of the URLs are ignored
+  // when locating the singleton tab.
+  void ShowSingletonTab(const GURL& url, bool ignore_path);
 
   // Update commands whose state depends on whether the window is in fullscreen
   // mode. This is a public function because on Linux, fullscreen mode is an
   // async call to X. Once we get the fullscreen callback, the browser window
   // will call this method.
   void UpdateCommandsForFullscreenMode(bool is_fullscreen);
 
   // Assorted browser commands ////////////////////////////////////////////////
 
   // NOTE: Within each of the following sections, the IDs are ordered roughly by
@@ skipping 668 matching lines @@
   // The profile's tab restore service. The service is owned by the profile,
   // and we install ourselves as an observer.
   TabRestoreService* tab_restore_service_;
 
   scoped_ptr<InstantController> instant_;
 
   DISALLOW_COPY_AND_ASSIGN(Browser);
 };
 
 #endif  // CHROME_BROWSER_UI_BROWSER_H_