Add a realm argument to "create an event"

dom.bs

@@ -75,6 +75,7 @@ urlPrefix: https://slightlyoff.github.io/ServiceWorker/spec/service_worker/#
         text: has ever been evaluated flag; for: service worker
 urlPrefix: https://tc39.github.io/ecma262/#; spec: ECMASCRIPT
     text: Construct; url: sec-construct; type: abstract-op
+    text: Realm; url: realm; type: dfn
 </pre>
 
 <pre class='link-defaults'>
@@ -963,10 +964,15 @@ must be run, given the arguments <var>type</var> and <var>eventInitDict</var>:
 <p>To
 <dfn export id=concept-event-create lt="creating an event|create an event">create an event</dfn>
 using <var>eventInterface</var>, which must be either {{Event}} or an interface that inherits from
-it, run these steps:</p>
+it, and optionally given a <a>Realm</a> <var>realm</var>, run these steps:</p>
 
 <ol>
- <li><p>Create a new object <var>event</var> using <var>eventInterface</var>.
+ <li>
+  <p>Create a new object <var>event</var> using <var>eventInterface</var>. If <var>realm</var>
+  is given, use that Realm; otherwise, use the default behavior defined in Web IDL.
+
+  <p class="XXX">As of the time of this writing Web IDL does not yet define any default behavior;
+  see <a href="https://github.com/heycam/webidl/issues/135">heycam/webidl#135</a>.
 
  <li><p>Set <var>event</var>'s <a>initialized flag</a>.
 

dom.html

@@ -71,7 +71,7 @@
    <p data-fill-with="logo"><a class="logo" href="https://whatwg.org/"> <img alt="WHATWG" height="100" src="https://resources.whatwg.org/logo-dom.svg"> </a> </p>
    <hgroup>
     <h1 class="p-name no-ref allcaps" id="title">DOM</h1>
-    <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Living Standard — Last Updated <time class="dt-updated" datetime="2016-10-24">24 October 2016</time></span></h2>
+    <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Living Standard — Last Updated <time class="dt-updated" datetime="2016-10-27">27 October 2016</time></span></h2>
    </hgroup>
    <div data-fill-with="spec-metadata">
     <dl>
@@ -728,10 +728,12 @@ <h3 class="heading settled" data-level="3.4" id="constructing-events"><span clas
      <p>Return <var>event</var>. </p>
    </ol>
    <p>To <dfn data-dfn-type="dfn" data-export="" data-lt="creating an event|create an event" id="concept-event-create">create an event<a class="self-link" href="#concept-event-create"></a></dfn> using <var>eventInterface</var>, which must be either <code class="idl"><a data-link-type="idl" href="#event">Event</a></code> or an interface that inherits from
-it, run these steps:</p>
+it, and optionally given a <a data-link-type="dfn" href="https://tc39.github.io/ecma262/#realm">Realm</a> <var>realm</var>, run these steps:</p>
    <ol>
     <li>
-     <p>Create a new object <var>event</var> using <var>eventInterface</var>. </p>
+     <p>Create a new object <var>event</var> using <var>eventInterface</var>. If <var>realm</var> is given, use that Realm; otherwise, use the default behavior defined in Web IDL. </p>
+     <p class="XXX">As of the time of this writing Web IDL does not yet define any default behavior;
+  see <a href="https://github.com/heycam/webidl/issues/135">heycam/webidl#135</a>. </p>
     <li>
      <p>Set <var>event</var>’s <a data-link-type="dfn" href="#initialized-flag">initialized flag</a>. </p>
     <li>
@@ -6574,6 +6576,7 @@ <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span cla
     <a data-link-type="biblio">[ECMASCRIPT]</a> defines the following terms:
     <ul>
      <li><a href="https://tc39.github.io/ecma262/#sec-construct">Construct</a>
+     <li><a href="https://tc39.github.io/ecma262/#realm">realm</a>
     </ul>
    <li>
     <a data-link-type="biblio">[ENCODING]</a> defines the following terms: