Fix getComputedStyle() for area element

Source/core/css/html.css

 /*
  * The default style sheet used to render HTML.
  *
  * Copyright (C) 2000 Lars Knoll (knoll@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
@@ skipping 632 matching lines @@
 
 option:-internal-spatial-navigation-focus {
     outline: black dashed 1px;
     outline-offset: -1px;
 }
 
 datalist {
     display: none
 }
 
-area, param {
-    display: none
+area {
+    display: inline;
+}
+
+param {
+    display: none;
 }
 
 input[type="checkbox" i] {
     -webkit-appearance: checkbox;
     box-sizing: border-box;
 }
 
 input[type="radio" i] {
     -webkit-appearance: radio;
     box-sizing: border-box;
@@ skipping 305 matching lines @@
     vertical-align: super;
     font-size: smaller
 }
 
 nobr {
     white-space: nowrap
 }
 
 /* states */
 
-:focus { 
+:focus {
     outline: auto 5px -webkit-focus-ring-color
 }
 
 /* Read-only text fields do not show a focus ring but do still receive focus */
-html:focus, body:focus, input[readonly]:focus { 
+html:focus, body:focus, input[readonly]:focus {
     outline: none
 }
 
 applet:focus, embed:focus, iframe:focus, object:focus {
     outline: none
 }
-  
+
 input:focus, textarea:focus, keygen:focus, select:focus {
     outline-offset: -2px
 }
 
 input[type="button" i]:focus,
 input[type="checkbox" i]:focus,
 input[type="file" i]:focus,
 input[type="hidden" i]:focus,
 input[type="image" i]:focus,
 input[type="radio" i]:focus,
 input[type="reset" i]:focus,
 input[type="search" i]:focus,
 input[type="submit" i]:focus,
 input[type="file" i]:focus::-webkit-file-upload-button {
     outline-offset: 0
 }
-    
+
 a:-webkit-any-link {

[maheshkk, 2014/08/06 21:44:11]

are these unintended whitespace changes? 

[zhaoze.zhou, 2014/08/07 15:09:19]

sublime-text settings have "trim_trailing_white_space_on_save": true,
so, these white spaces will be deleted automatically. I have remove 
the changes in patch 5. thanks. 

     color: -webkit-link;
     text-decoration: underline;
     cursor: auto;
 }
 
 a:-webkit-any-link:active {
     color: -webkit-activelink
 }
 
 /* HTML5 ruby elements */
@@ skipping 71 matching lines @@
 @page {
     /* FIXME: Define the right default values for page properties. */
     size: auto;
     margin: auto;
     padding: 0px;
     border-width: 0px;
 }
 
 /* noscript is handled internally, as it depends on settings. */