Align window named properties with implementations

a, area, and frameset elements with name="" attributes do not, in fact,
contribute to the window's named properties. Fixes #1810.

source

@@ -78926,10 +78926,10 @@ callback <dfn>FrameRequestCallback</dfn> = void (<span>DOMHighResTimeStamp</span
  <li><p><var>window</var>'s <span>document-tree child browsing context name property
  set</span>;</p></li>
 
- <li><p>the value of the <code data-x="">name</code> content attribute for all <code>a</code>,
- <code>applet</code>, <code>area</code>, <code>embed</code>, <code>form</code>,
- <code>frameset</code>, <code>img</code>, and <code>object</code> elements that have a non-empty
- <code data-x="">name</code> content attribute and are <span>in a document tree</span> with
+ <li><p>the value of the <code data-x="">name</code> content attribute for all
+ <code>applet</code>, <code>embed</code>, <code>form</code>, <code>frameset</code>,
+ <code>img</code>, and <code>object</code> elements that have a non-empty <code
+ data-x="">name</code> content attribute and are <span>in a document tree</span> with
  <var>window</var>'s <span>browsing context</span>'s <span>active document</span> as their
  <span>root</span>; and</p></li>