Added bowser test for Captive Portal Window.

chrome/browser/chromeos/login/captive_portal_window_proxy.h

 // Copyright (c) 2012 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_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/gfx/native_widget_types.h"
@@ skipping 40 matching lines @@
 
   // Called by CaptivePortalView when URL loading was redirected from the
   // original URL.
   void OnRedirected();
 
   // Called by CaptivePortalView when origin URL is loaded without any
   // redirections.
   void OnOriginalURLLoaded();
 
   // Overridden from views::WidgetObserver:
-  virtual void OnWidgetDestroying(views::Widget* widget) OVERRIDE;
+  virtual void OnWidgetClosing(views::Widget* widget) OVERRIDE;
 
  private:
+  friend class CaptivePortalWindowTest;
+
+  // Possible transitions between states:
+  //
+  // wp(ShowIfRedirected(), WAITING_FOR_REDIRECTION) = IDLE
+  // wp(Show(), DISPLAYED) = IDLE | WAITING_FOR_REDIRECTION
+  // wp(Close(), IDLE) = WAITING_FOR_REDIRECTION | DISPLAYED
+  // wp(OnRedirected(), DISPLAYED) = WAITING_FOR_REDIRECTION
+  // wp(OnOriginalURLLoaded(), IDLE) = WAITING_FOR_REDIRECTION | DISPLAYED
+  //
+  // where wp(E, S) is a weakest precondition (initial state) such
+  // that after execution of E the system will be surely in the state S.
+  enum State {
+    STATE_IDLE = 0,
+    STATE_WAITING_FOR_REDIRECTION,
+    STATE_DISPLAYED,
+    STATE_UNKNOWN
+  };
+
+  // Initializes |captive_portal_view_| if it is not initialized and
+  // starts loading Captive Portal redirect URL.
+  void InitCaptivePortalView();
+
+  // Returns symbolic state name based on internal state.
+  State GetState() const;
+
   Delegate* delegate_;
   views::Widget* widget_;
   scoped_ptr<CaptivePortalView> captive_portal_view_;
   gfx::NativeWindow parent_;
 
   DISALLOW_COPY_AND_ASSIGN(CaptivePortalWindowProxy);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_CAPTIVE_PORTAL_WINDOW_PROXY_H_