Don't generate a certificate browse button or passphrase field if cert path contains SETTINGS:

chrome/browser/chromeos/status/network_menu_button.cc

 // 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.
 
 #include "chrome/browser/chromeos/status/network_menu_button.h"
 
 #include <limits>
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
@@ skipping 115 matching lines @@
         view->set_browser_mode(host_->IsBrowserMode());
         views::Window* window = views::Window::CreateChromeWindow(
             host_->GetNativeWindow(), gfx::Rect(), view);
         window->SetIsAlwaysOnTop(true);
         window->Show();
       }
     } else {
       // If wifi network is not encrypted, then directly connect.
       // Otherwise, we open password dialog window.
       if (!wifi.encrypted()) {
-        cros->ConnectToWifiNetwork(wifi, string16(), string16(), string16());
+        cros->ConnectToWifiNetwork(wifi, std::string(),
+                                   std::string(), std::string());
       } else {
         NetworkConfigView* view = new NetworkConfigView(wifi, true);
         view->set_browser_mode(host_->IsBrowserMode());
         views::Window* window = views::Window::CreateChromeWindow(
             host_->GetNativeWindow(), gfx::Rect(), view);
         window->SetIsAlwaysOnTop(true);
         window->Show();
         view->SetLoginTextfieldFocus();
       }
     }
@@ skipping 369 matching lines @@
     if (host_->ShouldOpenButtonOptions(this)) {
       label =
           l10n_util::GetStringUTF16(IDS_STATUSBAR_NETWORK_OPEN_OPTIONS_DIALOG);
       menu_items_.push_back(MenuItem(menus::MenuModel::TYPE_COMMAND, label,
           SkBitmap(), WifiNetwork(), CellularNetwork(), FLAG_OPTIONS));
     }
   }
 }
 
 }  // namespace chromeos