Add a virtual keyboard webui at chrome://keyboard/

chrome/browser/resources/virtual_keyboard/layout_us.js

+// 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.
+
+/**
+ * @fileoverview A simple English virtual keyboard implementation.
+ */
+
+/**
+ * All keys for the rows of the keyboard.
+ * NOTE: every row below should have an aspect of 12.6.
+ * @type {Array.<Array.<BaseKey>>}
+ */
+var KEYS_US = [
+  [
+    new SpecialKey('space', ' ', 'Spacebar'),

[bshe, 2013/04/04 23:55:25]

drive by: this is probably included accidentally?

+  ],
+  [
+    new Key(C('\`'), C('~')),
+    new Key(C('1'), C('!')),
+    new Key(C('2'), C('@')),
+    new Key(C('3'), C('#')),
+    new Key(C('4'), C('$')),
+    new Key(C('5'), C('%')),
+    new Key(C('6'), C('^')),
+    new Key(C('7'), C('&')),
+    new Key(C('8'), C('*')),
+    new Key(C('9'), C('(')),
+    new Key(C('0'), C(')')),
+    new Key(C('-'), C('_')),
+    new Key(C('='), C('+')),
+    new SvgKey('backspace', 'Backspace', true /* repeat */)
+  ],
+  [
+    new SvgKey('tab', 'Tab'),
+    new Key(C('q'), C('Q')),
+    new Key(C('w'), C('W')),
+    new Key(C('e'), C('E')),
+    new Key(C('r'), C('R')),
+    new Key(C('t'), C('T')),
+    new Key(C('y'), C('Y')),
+    new Key(C('u'), C('U')),
+    new Key(C('i'), C('I')),
+    new Key(C('o'), C('O')),
+    new Key(C('p'), C('P')),
+    new Key(C('['), C('{')),
+    new Key(C(']'), C('}')),
+    new Key(C('\\'), C('|'), 'bar'),
+  ],
+  [
+    new SymbolKey(),
+    new Key(C('a'), C('A')),
+    new Key(C('s'), C('S')),
+    new Key(C('d'), C('D')),
+    new Key(C('f'), C('F')),
+    new Key(C('g'), C('G')),
+    new Key(C('h'), C('H')),
+    new Key(C('j'), C('J')),
+    new Key(C('k'), C('K')),
+    new Key(C('l'), C('L')),
+    new Key(C(';'), C(':')),
+    new Key(C('\''), C('"')),
+    new SvgKey('return', 'Enter')
+  ],
+  [
+    new ShiftKey('left-shift'),
+    new Key(C('z'), C('Z')),
+    new Key(C('x'), C('X')),
+    new Key(C('c'), C('C')),
+    new Key(C('v'), C('V')),
+    new Key(C('b'), C('B')),
+    new Key(C('n'), C('N')),
+    new Key(C('m'), C('M')),
+    new Key(C(','), C('<')),
+    new Key(C('.'), C('>')),
+    new Key(C('/'), C('?')),
+    new ShiftKey('right-shift')
+  ],
+  [
+    new SpecialKey('space', ' ', 'Spacebar'),

[bshe, 2013/04/04 23:55:25]

drive by: this should probably be:
    new SvgKey('mic', ''),
    new DotComKey(),
    new SpecialKey('at', '@', '@'),
    // TODO(bryeung): the spacebar needs to be a little bit more stretchy,
    // since this row has only 7 keys (as opposed to 12), the truncation
    // can cause it to not be wide enough.
    new SpecialKey('space', ' ', 'Spacebar'),
    new SpecialKey('comma', ',', ','),
    new SpecialKey('period', '.', '.'),
    new HideKeyboardKey()

[bryeung, 2013/04/05 17:17:46]

Done.

+  ]
+];
+
+// Add layout to KEYBOARDS, which is defined in common.js
+KEYBOARDS['us'] = {
+  'definition': KEYS_US,
+  //"aspect": 3.15,
+  'aspect': 2.8,
+};