Virtual Keyboard Shift Highlight fixed.

ui/keyboard/resources/layouts/qwerty.html

 <!--
   -- 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.
   -->
 
 <link rel="import" href="../elements/kb-key-sequence.html">
 <link rel="import" href="../elements/kb-key-import.html">
 <link id="spacebar-row" rel="import" href="spacebar-row.html">
 
 <template>
-  <kb-keyset id="qwerty-upper">
+  <kb-keyset id="qwerty-upper" lockable='true'>

[bshe, 2013/08/28 16:35:03]

Could you use double quote instead of single quote?

     <kb-row>
       <kb-key class="tab dark" char="&#x0009;" align="left">tab</kb-key>
       <kb-key-sequence keys="QWERTYUIOP" superscripts="1234567890"></kb-key-sequence>
       <kb-key class="backspace dark" char="&#x0008;" repeat align="right">backspace</kb-key>
     </kb-row>
     <kb-row>
       <kb-key class="microphone dark" char="Microphone"></kb-key>
       <kb-key-sequence keys="ASDFGHJKL"></kb-key-sequence>
       <kb-key class='return dark' char="&#x000A;" align="right">enter</kb-key>
     </kb-row>
@@ skipping 98 matching lines @@
       <kb-key class="right-more dark" toKeyset="up:symbol" char="Invalid" align="right">#123</kb-key>
     </kb-row>
     <kb-row>
       <kb-key class="symbol dark" toKeyset="up:lower" char="Invalid" align="left">abc</kb-key>
       <kb-key-import importId="spacebar-row"></kb-key-import>
       <kb-key class="symbol dark" toKeyset="up:lower" char="Invalid" align="right">abc</kb-key>
       <kb-layout-selector toLayout="dvorak"></kb-layout-selector>
     </kb-row>
   </kb-keyset>
 </template>