[cros] Captive portal dialog fixes.

chrome/browser/chromeos/login/captive_portal_window_proxy.h

Index: chrome/browser/chromeos/login/captive_portal_window_proxy.h
diff --git a/chrome/browser/chromeos/login/captive_portal_window_proxy.h b/chrome/browser/chromeos/login/captive_portal_window_proxy.h
index a3371f4657580342661c33cbd905c926f2f56323..2e6424b4f0d1679d38afee1696f41f95cca749f0 100644
--- a/chrome/browser/chromeos/login/captive_portal_window_proxy.h
+++ b/chrome/browser/chromeos/login/captive_portal_window_proxy.h
@@ -40,8 +40,13 @@ class CaptivePortalWindowProxy : public views::Widget::Observer {
   // Shows captive portal window only after a redirection has happened. So it is
   // safe to call this method, when the caller isn't 100% sure that the network
   // is in the captive portal state.
+  // Subsequent call to this method would reuses existing view
+  // but reloads test page (generate_204).
   void ShowIfRedirected();
 
+  // Forces captive portal window show.
+  void Show();
+
   // Closes the window.
   void Close();