Move worker's close() to dedicated and shared worker

As WorkerGlobalScope's close() method should not be exposed to one of its derived interfaces, ServiceWorkerGlobalScope, close() needs to be moved to the derived interfaces which explicitly require it. This commit moves close() to DedicatedWorkerGlobalScope and SharedWorkerGlobalScope.

Related issue: w3c/ServiceWorker#865.

source

@@ -96156,8 +96156,6 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
   readonly attribute <span>WorkerNavigator</span> <span data-x="dom-worker-navigator">navigator</span>;
   void <span data-x="dom-WorkerGlobalScope-importScripts">importScripts</span>(DOMString... urls);
 
-  void <span data-x="dom-WorkerGlobalScope-close">close</span>();
-
   attribute <span>OnErrorEventHandler</span> <span data-x="handler-WorkerGlobalScope-onerror">onerror</span>;
   attribute <span>EventHandler</span> <span data-x="handler-WorkerGlobalScope-onlanguagechange">onlanguagechange</span>;
   attribute <span>EventHandler</span> <span data-x="handler-WorkerGlobalScope-onoffline">onoffline</span>;
@@ -96199,9 +96197,6 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
    <dt><var>workerGlobal</var> . <code subdfn data-x="dom-WorkerGlobalScope-importScripts">importScripts</code>(<var>urls</var>...)</dt>
    <dd>Fetches each <span>URL</span> in <var>urls</var>, executes them one-by-one in the order they
    are passed, and then returns (or throws if something went amiss).</dd>
-
-   <dt><var>workerGlobal</var> . <code subdfn data-x="dom-WorkerGlobalScope-close">close</code>()</dt>
-   <dd>Aborts <var>workerGlobal</var>.</dd>
   </dl>
 
   <div w-nodev>
@@ -96218,24 +96213,6 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
   <code>WorkerGlobalScope</code> object, this is not problematic as it cannot be observed from
   script.</p>
 
-  <hr>
-
-  <p>When a script invokes the <dfn><code data-x="dom-WorkerGlobalScope-close">close()</code></dfn>
-  method on a <code>WorkerGlobalScope</code> object, the user agent must run the following steps
-  (atomically):</p>
-
-  <ol>
-
-   <li><p>Discard any <span data-x="concept-task">tasks</span> that have been added to the
-   <code>WorkerGlobalScope</code> object's <span>event loop</span>'s <span data-x="task queue">task
-   queues</span>.</p>
-
-   <li><p>Set the worker's <code>WorkerGlobalScope</code> object's <span
-   data-x="dom-WorkerGlobalScope-closing">closing</span> flag to true. (This prevents any further
-   tasks from being queued.)</p></li>
-
-  </ol>
-
   </div>
 
   <hr>
@@ -96262,6 +96239,9 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
   <pre class="idl">[Global=(Worker,DedicatedWorker),Exposed=DedicatedWorker]
 /*sealed*/ interface <dfn>DedicatedWorkerGlobalScope</dfn> : <span>WorkerGlobalScope</span> {
   void <span data-x="dom-DedicatedWorkerGlobalScope-postMessage">postMessage</span>(any message, optional sequence&lt;<span data-x="idl-object">object</span>&gt; transfer = []);
+
+  void <span data-x="dom-DedicatedWorkerGlobalScope-close">close</span>();
+
   attribute <span>EventHandler</span> <span data-x="handler-DedicatedWorkerGlobalScope-onmessage">onmessage</span>;
 };</pre>
 
@@ -96273,11 +96253,45 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
   <p>All messages received by that port must immediately be retargeted at the
   <code>DedicatedWorkerGlobalScope</code> object.</p>
 
+  <dl class="domintro">
+   <dt><var>dedicatedWorkerGlobal</var> . <code subdfn
+   data-x="dom-DedicatedWorkerGlobalScope-postMessage">postMessage</code>(<var>message</var> [,
+   <var>transfer</var> ])</dt>
+   <dd>Clones <var>message</var> and transmits it to the <code>Worker</code> object associated with
+   <var>dedicatedWorkerGlobal</var>. <var>transfer</var> can be passed as a list of objects that are
+   to be transfered rather than cloned.</dd>
+
+   <dt><var>dedicatedWorkerGlobal</var> . <code subdfn
+   data-x="dom-DedicatedWorkerGlobalScope-close">close</code>()</dt>
+   <dd>Aborts <var>dedicatedWorkerGlobal</var>.</dd>
+  </dl>
+
   <p>The <dfn><code data-x="dom-DedicatedWorkerGlobalScope-postMessage">postMessage()</code></dfn>
   method on <code>DedicatedWorkerGlobalScope</code> objects must act as if, when invoked, it
   immediately invoked <span data-x="dom-MessagePort-postMessage">the method of the same name</span>
   on the port, with the same arguments, and returned the same return value.</p>
 
+  <div w-nodev>
+
+  <p>To <dfn>close a worker</dfn>, given a <var>workerGlobal</var>, run these steps:</p>
+
+  <ol>
+   <li><p>Discard any <span data-x="concept-task">tasks</span> that have been added to
+   <var>workerGlobal</var>'s <span>event loop</span>'s <span data-x="task queue">task
+   queues</span>.</p>
+
+   <li><p>Set <var>workerGlobal</var>'s <span data-x="dom-WorkerGlobalScope-closing">closing</span>
+   flag to true. (This prevents any further tasks from being queued.)</p></li>
+  </ol>
+
+  <p>The <dfn><code data-x="dom-DedicatedWorkerGlobalScope-close">close()</code></dfn> method, when
+  invoked, must <span>close a worker</span> with this <code>DedicatedWorkerGlobalScope</code>
+  object.</p>
+
+  </div>
+
+  <hr>
+
   <p>The following are the <span>event handlers</span> (and their corresponding <span data-x="event
   handler event type">event handler event types</span>) that must be supported, as <span>event
   handler IDL attributes</span>, by objects implementing the <code>DedicatedWorkerGlobalScope</code>
@@ -96301,6 +96315,9 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
 /*sealed*/ interface <dfn>SharedWorkerGlobalScope</dfn> : <span>WorkerGlobalScope</span> {
   readonly attribute DOMString <span data-x="dom-SharedWorkerGlobalScope-name">name</span>;
   readonly attribute <span>ApplicationCache</span> <span data-x="dom-SharedWorkerGlobalScope-applicationCache">applicationCache</span>; // deprecated
+
+  void <span data-x="dom-SharedWorkerGlobalScope-close">close</span>();
+
   attribute <span>EventHandler</span> <span data-x="handler-SharedWorkerGlobalScope-onconnect">onconnect</span>;
 };</pre>
 
@@ -96318,6 +96335,10 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
    <dt><var>sharedWorkerGlobal</var> . <code subdfn data-x="dom-SharedWorkerGlobalScope-name">name</code></dt>
    <dd>Returns <var>sharedWorkerGlobal</var>'s <span
    data-x="concept-SharedWorkerGlobalScope-name">name</span>.</dd>
+
+   <dt><var>sharedWorkerGlobal</var> . <code subdfn
+   data-x="dom-SharedWorkerGlobalScope-close">close</code>()</dt>
+   <dd>Aborts <var>sharedWorkerGlobal</var>.</dd>
   </dl>
 
   <div w-nodev>
@@ -96327,8 +96348,14 @@ interface <dfn>WorkerGlobalScope</dfn> : <span>EventTarget</span> {
   data-x="concept-SharedWorkerGlobalScope-name">name</span>. Its value represents the name that can
   be used to obtain a reference to the worker using the <code>SharedWorker</code> constructor.</p>
 
+  <p>The <dfn><code data-x="dom-SharedWorkerGlobalScope-close">close()</code></dfn> method, when
+  invoked, must <span>close a worker</span> with this <code>SharedWorkerGlobalScope</code>
+  object.</p>
+
   </div>
 
+  <hr>
+
   <p>The following are the <span>event handlers</span> (and their corresponding <span data-x="event
   handler event type">event handler event types</span>) that must be supported, as <span>event
   handler IDL attributes</span>, by objects implementing the <code>SharedWorkerGlobalScope</code>