Add layout switcher for virtual keyboard.

chrome/test/data/chromeos/virtual_keyboard/keyset_transition_test.js

 /*
  * Copyright 2013 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.
  */
 
 /**
  * Returns the unique transition key identified by the innerText,
  * alignment and keyset it is in.
  * @param {string} alignment The alignment of the key. One of {left,right}.
@@ skipping 170 matching lines @@
     mockTimer.tick(1000);
     upperShift.up(mockEvent);
     assertEquals('qwerty-upper', keyboard.activeKeysetId,
         "Unexpected transition on long press.");
     keyboard.inputTypeValue = 'text';
   }
 
   var subtasks = [];
   subtasks.push(transition('qwerty-lower', 'number',
       "Did not reset keyboard on focus change"));
-  subtasks.push(transition('numeric-symbol', 'password',
-      "Did not switch to numeric keypad."));
-  subtasks.push(transition('system-qwerty-lower', 'text',
+  subtasks.push(transition('numeric-symbol', 'text',
       "Did not switch to numeric keypad."));
   // Clean up
   subtasks.push(function() {
    assertEquals('qwerty-lower', keyboard.activeKeysetId,
         "Unexpected final active keyset");
   });
   onKeyboardReady(testName, setupWork, testDoneCallback, subtasks);
 }
 
  /**
  * Tests that keyset transitions work as expected.
  * The test is run asynchronously since the keyboard loads keysets dynamically.
  * @param {function} testDoneCallback The function to be called on completion.
  */
 function testKeysetTransitionsAsync(testDoneCallback) {
   var runTest = function() {
     var alignments = ['left', 'right'];
     for (var i in alignments) {
       checkBasicTransitions(alignments[i]);
     }
   };
   onKeyboardReady('testKeysetTransitionsAsync',
      runTest, testDoneCallback);
 }