WIP render as task

source

@@ -3380,6 +3380,7 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
     data-x-href="https://w3c.github.io/hr-time/#dfn-unsafe-shared-current-time">unsafe shared
     current time</dfn>, the <dfn
     data-x-href="https://w3c.github.io/hr-time/#dfn-shared-monotonic-clock">shared monotonic clock</dfn>,
+    the <dfn data-x-href="https://w3c.github.io/hr-time/#dfn-unsafe-moment">unsafe moment</dfn>,
     the <dfn data-x-href="https://w3c.github.io/hr-time/#dfn-coarsen-time">coarsen time</dfn>
     algorithm, and the <dfn
     data-x-href="https://w3c.github.io/hr-time/#dom-domhighrestimestamp"><code>DOMHighResTimeStamp</code></dfn>
@@ -108122,8 +108123,8 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
    </li>
 
    <li>
-    <p><dfn export>Update the rendering</dfn>: if this is a <span>window event loop</span>,
-    then:</p>
+    <p>Let <dfn export>Update the rendering</dfn> be the following steps given an
+    <span>unsafe moment</span> <var>frameTimestamp</var>:</p>
 
     <ol>
      <li>
@@ -108233,7 +108234,7 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
 
      <li><p>For each <span>fully active</span> <code>Document</code> in <var>docs</var>,
      <span>update animations and send events</span> for that <code>Document</code>, passing in
-     <span>relative high resolution time</span> given <var>now</var> and that
+     <span>relative high resolution time</span> given <var>frameTimestamp</var> and that
      <code>Document</code>'s <span>relevant global object</span> as the timestamp.
      <ref>WEBANIMATIONS</ref></p></li>
 
@@ -108278,7 +108279,7 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
 
      <li><p>For each <span>fully active</span> <code>Document</code> in <var>docs</var>, <span>run
      the animation frame callbacks</span> for that <code>Document</code>, passing in the
-     <span>relative high resolution time</span> given <var>now</var> and that
+     <span>relative high resolution time</span> given <var>frameTimestamp</var> and that
      <code>Document</code>'s <span>relevant global object</span> as the timestamp.</p></li>
 
      <li>
@@ -108389,6 +108390,33 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
     </ol>
    </li>
 
+   <li>
+    <p>If this is a <span>window event loop</span>, then run the following steps
+    <span>in parallel</span>:</p>
+
+    <ol>
+     <li><p>Wait until at least one <span>navigable</span> <var>navigable</var> whose <span
+     data-x="nav-document">active document</span>'s <span>relevant agent</span>'s <span
+     data-x="concept-agent-event-loop">event loop</span> is this event loop might have a
+     <span>rendering opportunity</span>.</p></li>
+
+     <li><p>Let <var>frameTimestamp</var> be the <span>unsafe shared current time</span>.</p></li>
+
+     <li>
+      <p>For each <var>navigable</var> that might have a <span>rendering opportunity</span>,
+      <span>queue a global task</span> on the <span>rendering task source</span> given
+      <var>navigable</var>'s <span data-x="nav-document">active document</span>'s
+      <span>relevant global object</span> to <span>update the rendering</span> given
+      <var>frameTimestamp</var>.</p>
+
+      <p class="note">The <span>update the rendering</span> steps would update all documents in this
+      <span>event loop</span> that have a <span>rendering opportunity</span>. The purpose of these
+      <span>in parallel</span> steps is to guarantee that the <span>update the rendering</span> step
+      is scheduled as a <span data-x="concept-task">task</span>.</p>
+     </li>
+    </ol>
+   </li>
+
    <li id="idle-deadline-computation">
     <p>If all of the following are true:</p>
 
@@ -108844,6 +108872,12 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
     data-x="navigate">navigation</span> and <span data-x="apply the traverse history step">history
     traversal</span>.</p>
    </dd>
+
+   <dt>The <dfn export>rendering task source</dfn></dt>
+
+   <dd>
+    <p>This <span>task source</span> us used solely to <span>update the rendering</span>.
+   </dd>
   </dl>
 
   <h5 id="event-loop-for-spec-authors">Dealing with the event loop from other specifications</h5>