[giow] (2) Change how window.opener works to allow it to be set to 'n…

…ull' and have that persist past page load.

Fixing http://www.w3.org/Bugs/Public/show_bug.cgi?id=11839

git-svn-id: http://svn.whatwg.org/webapps@5906 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

@@ -58236,11 +58236,16 @@ <h4 id=auxiliary-browsing-contexts><span class=secno>6.1.2 </span>Auxiliary brow
   <h5 id=navigating-auxiliary-browsing-contexts-in-the-dom><span class=secno>6.1.2.1 </span>Navigating auxiliary browsing contexts in the DOM</h5>
 
   <p>The <dfn id=dom-opener title=dom-opener><code>opener</code></dfn> IDL
-  attribute on the <code><a href=#window>Window</a></code> object must return the
-  <code><a href=#windowproxy>WindowProxy</a></code> object of the <a href=#browsing-context>browsing context</a>
-  from which the current <a href=#browsing-context>browsing context</a> was created
-  (its <a href=#opener-browsing-context>opener browsing context</a>), if there is one and it
-  is still available.</p>
+  attribute on the <code><a href=#window>Window</a></code> object, on getting, must return
+  the <code><a href=#windowproxy>WindowProxy</a></code> object of the <a href=#browsing-context>browsing
+  context</a> from which the current <a href=#browsing-context>browsing context</a>
+  was created (its <a href=#opener-browsing-context>opener browsing context</a>), if there is
+  one, if it is still available, and if the current <a href=#browsing-context>browsing
+  context</a> has not <i><a href=#disowned-its-opener>disowned its opener</a></i>. On setting, if
+  the new value is null then the current <a href=#browsing-context>browsing context</a>
+  must <dfn id=disowned-its-opener title="disowned its opener">disown its opener</dfn>; if
+  the new value is anything else then the user agent must ignore the
+  new value.</p>
 
 
 
@@ -58511,7 +58516,7 @@ <h3 id=the-window-object><span class=secno>6.2 </span>The <code><a href=#window>
   [Replaceable] readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-frames title=dom-frames>frames</a>;
   [Replaceable] readonly attribute unsigned long <a href=#dom-length title=dom-length>length</a>;
   readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-top title=dom-top>top</a>;
-  [Replaceable] readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-opener title=dom-opener>opener</a>;
+           attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-opener title=dom-opener>opener</a>;
   readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-parent title=dom-parent>parent</a>;
   readonly attribute <a href=#element>Element</a> <a href=#dom-frameelement title=dom-frameElement>frameElement</a>;
   <a href=#windowproxy>WindowProxy</a> <a href=#dom-open title=dom-open>open</a>(in optional DOMString url, in optional DOMString target, in optional DOMString features, in optional DOMString replace);

index

@@ -58219,11 +58219,16 @@ _:n2  hcard:adr%20street-address "Avenue Q" ;
   <h5 id=navigating-auxiliary-browsing-contexts-in-the-dom><span class=secno>6.1.2.1 </span>Navigating auxiliary browsing contexts in the DOM</h5>
 
   <p>The <dfn id=dom-opener title=dom-opener><code>opener</code></dfn> IDL
-  attribute on the <code><a href=#window>Window</a></code> object must return the
-  <code><a href=#windowproxy>WindowProxy</a></code> object of the <a href=#browsing-context>browsing context</a>
-  from which the current <a href=#browsing-context>browsing context</a> was created
-  (its <a href=#opener-browsing-context>opener browsing context</a>), if there is one and it
-  is still available.</p>
+  attribute on the <code><a href=#window>Window</a></code> object, on getting, must return
+  the <code><a href=#windowproxy>WindowProxy</a></code> object of the <a href=#browsing-context>browsing
+  context</a> from which the current <a href=#browsing-context>browsing context</a>
+  was created (its <a href=#opener-browsing-context>opener browsing context</a>), if there is
+  one, if it is still available, and if the current <a href=#browsing-context>browsing
+  context</a> has not <i><a href=#disowned-its-opener>disowned its opener</a></i>. On setting, if
+  the new value is null then the current <a href=#browsing-context>browsing context</a>
+  must <dfn id=disowned-its-opener title="disowned its opener">disown its opener</dfn>; if
+  the new value is anything else then the user agent must ignore the
+  new value.</p>
 
 
 
@@ -58494,7 +58499,7 @@ interface <dfn id=window>Window</dfn> {
   [Replaceable] readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-frames title=dom-frames>frames</a>;
   [Replaceable] readonly attribute unsigned long <a href=#dom-length title=dom-length>length</a>;
   readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-top title=dom-top>top</a>;
-  [Replaceable] readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-opener title=dom-opener>opener</a>;
+           attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-opener title=dom-opener>opener</a>;
   readonly attribute <a href=#windowproxy>WindowProxy</a> <a href=#dom-parent title=dom-parent>parent</a>;
   readonly attribute <a href=#element>Element</a> <a href=#dom-frameelement title=dom-frameElement>frameElement</a>;
   <a href=#windowproxy>WindowProxy</a> <a href=#dom-open title=dom-open>open</a>(in optional DOMString url, in optional DOMString target, in optional DOMString features, in optional DOMString replace);

source

@@ -66151,11 +66151,16 @@ _:n2  hcard:adr%20street-address "Avenue Q" ;
   <h5>Navigating auxiliary browsing contexts in the DOM</h5>
 
   <p>The <dfn title="dom-opener"><code>opener</code></dfn> IDL
-  attribute on the <code>Window</code> object must return the
-  <code>WindowProxy</code> object of the <span>browsing context</span>
-  from which the current <span>browsing context</span> was created
-  (its <span>opener browsing context</span>), if there is one and it
-  is still available.</p>
+  attribute on the <code>Window</code> object, on getting, must return
+  the <code>WindowProxy</code> object of the <span>browsing
+  context</span> from which the current <span>browsing context</span>
+  was created (its <span>opener browsing context</span>), if there is
+  one, if it is still available, and if the current <span>browsing
+  context</span> has not <i>disowned its opener</i>. On setting, if
+  the new value is null then the current <span>browsing context</span>
+  must <dfn title="disowned its opener">disown its opener</dfn>; if
+  the new value is anything else then the user agent must ignore the
+  new value.</p>
 
 
 
@@ -66464,7 +66469,7 @@ interface <dfn>Window</dfn> {
   [Replaceable] readonly attribute <span>WindowProxy</span> <span title="dom-frames">frames</span>;
   [Replaceable] readonly attribute unsigned long <span title="dom-length">length</span>;
   readonly attribute <span>WindowProxy</span> <span title="dom-top">top</span>;
-  [Replaceable] readonly attribute <span>WindowProxy</span> <span title="dom-opener">opener</span>;
+           attribute <span>WindowProxy</span> <span title="dom-opener">opener</span>;
   readonly attribute <span>WindowProxy</span> <span title="dom-parent">parent</span>;
   readonly attribute <span>Element</span> <span title="dom-frameElement">frameElement</span>;
   <span>WindowProxy</span> <span title="dom-open">open</span>(in optional DOMString url, in optional DOMString target, in optional DOMString features, in optional DOMString replace);