Add a browser-test for the keyboard widget.

chrome/common/chrome_notification_types.h

 // Copyright (c) 2011 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_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #define CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_
 #pragma once
 
 #include "content/common/content_notification_types.h"
 
@@ skipping 829 matching lines @@
 
 #if defined(OS_CHROMEOS)
   // Sent when WebSocketProxy started accepting connections.
   NOTIFICATION_WEB_SOCKET_PROXY_STARTED,
 #endif
 
   // Sent when a new web store promo has been loaded.
   NOTIFICATION_WEB_STORE_PROMO_LOADED,
 
 #if defined(TOUCH_UI)
+  // Sent when the keyboard visibility has changed. Used for testing purposes
+  // only. Source is the keyboard manager, and Details is a boolean indicating
+  // whether the keyboard is visibile or not.
+  NOTIFICATION_KEYBOARD_VISIBILITY_CHANGED,
+
   // Sent when an API for hiding the keyboard is invoked from JavaScript code.
   NOTIFICATION_HIDE_KEYBOARD_INVOKED,
 
   // Sent when an API for set height of the keyboard is invoked from
   // JavaScript code.
   NOTIFICATION_SET_KEYBOARD_HEIGHT_INVOKED,
 
   // Sent when an editable element is touched, such as text box, password
   // field, and omnibox.
   NOTIFICATION_EDITABLE_ELEMENT_TOUCHED,
@@ skipping 10 matching lines @@
   // Currently only Content and Chrome define and use notifications.
   // Custom notifications not belonging to Content and Chrome should start
   // from here.
   NOTIFICATION_CHROME_END,
 };
 
 }  // namespace chrome
 
 
 #endif  // CHROME_COMMON_CHROME_NOTIFICATION_TYPES_H_