DOMUI: Use ShowSingletonTab to open the settings tab.

chrome/browser/ui/browser_navigator.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_NAVIGATOR_H_
 #define CHROME_BROWSER_UI_BROWSER_NAVIGATOR_H_
 #pragma once
 
 #include <string>
 
@@ skipping 98 matching lines @@
   // TODO(beng): Figure out if this can be used to create Browser windows
   //             for other callsites that use set_override_bounds, or
   //             remove this comment.
   gfx::Rect window_bounds;
 
   // True if the target window should be made visible at the end of the call
   // to Navigate(). This activates the window if it was already visible.
   // Default is false.
   bool show_window;
 
+  // True if the paths of the target content's URL and |url| should be ignored
+  // when locating a singleton tab.
+  bool ignore_path;
+
   // [in]  Specifies a Browser object where the navigation could occur or the
   //       tab could be added. Navigate() is not obliged to use this Browser if
   //       it is not compatible with the operation being performed. If NULL,
   //       |profile| should be specified to find or create a matching Browser.
   // [out] Specifies the Browser object where the navigation occurred or the
   //       tab was added. Guaranteed non-NULL unless the disposition did not
   //       require a navigation, in which case this is set to NULL
   //       (SUPPRESS_OPEN, SAVE_TO_DISK, IGNORE_ACTION).
   // Note: If |show_window| is set to false and a new Browser is created by
   //       Navigate(), the caller is responsible for showing it so that its
   //       window can assume responsibility for the Browser's lifetime (Browser
   //       objects are deleted when the user closes a visible browser window).
   Browser* browser;
 
   // If |browser| == NULL, specifies a Profile to use when finding or
   // creating a Browser.
   Profile* profile;
 
  private:
   NavigateParams();
 };
 
 // Navigates according to the configuration specified in |params|.
 void Navigate(NavigateParams* params);
 
 }  // namespace browser
 
 #endif  // CHROME_BROWSER_UI_BROWSER_NAVIGATOR_H_