Queue a task to resolve createImageBitmap()

Fixes whatwg#5329. Fixes whatwg#10611.

Now, early errors reject synchronously, while everything rejecting or resolving "in parallel" is run from a task. This matches Firefox's behavior.

Author: Kaiido

source

@@ -114083,11 +114083,10 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
     <p>This <span>task source</span> is used for features that react to user interaction, for
     example keyboard or mouse input.</p>
 
-    <p>Events sent in response to user input (e.g. <code
-    data-x="event-click">click</code> events) must be fired using <span
-    data-x="concept-task">tasks</span> <span data-x="queue a task">queued</span> with the <span>user
-    interaction task source</span>. <ref>UIEVENTS</ref></p> <!-- user
-    interaction events integration point -->
+    <p>Events sent in response to user input (e.g., <code data-x="event-click">click</code> events)
+    must be fired using <span data-x="concept-task">tasks</span> <span data-x="queue a
+    task">queued</span> with the <span>user interaction task source</span>. <ref>UIEVENTS</ref></p>
+    <!-- user interaction events integration point -->
    </dd>
 
    <dt>The <dfn export>networking task source</dfn></dt>
@@ -114108,7 +114107,7 @@ import "https://example.com/foo/../module2.mjs";</code></pre>
    <dt>The <dfn>rendering task source</dfn></dt>
 
    <dd>
-    <p>This <span>task source</span> is used solely to <span>update the rendering</span>.
+    <p>This <span>task source</span> is used solely to <span>update the rendering</span>.</p>
    </dd>
   </dl>
 
@@ -119094,6 +119093,9 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
 
   <hr>
 
+  <p>The <span data-x="dom-createImageBitmap">createImageBitmap</span> method uses the <dfn>bitmap
+  task source</dfn> to settle its returned Promise.</p>
+
   <p>The <dfn method for="WindowOrWorkerGlobalScope"><code
   data-x="dom-createImageBitmap">createImageBitmap(<var>image</var>,
   <var>options</var>)</code></dfn> and <code data-x="">createImageBitmap(<var>image</var>,
@@ -119115,7 +119117,7 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
    exception or returns <i>bad</i>, then return <span>a promise rejected with</span> an
    <span>"<code>InvalidStateError</code>"</span> <code>DOMException</code>.
 
-   <li><p>Let <var>p</var> be a new promise.</p></li>
+   <li><p>Let <var>promise</var> be a new promise.</p></li>
 
    <li><p>Let <var>imageBitmap</var> be a new <code>ImageBitmap</code> object.</p></li>
 
@@ -119152,13 +119154,8 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        data-x="concept-canvas-origin-clean">origin-clean</span> flag of <var>imageBitmap</var>'s
        bitmap to false.</p></li>
 
-       <li>
-        <p>Run this step <span>in parallel</span>:</p>
-
-        <ol>
-         <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
-        </ol>
-       </li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
 
@@ -119181,13 +119178,8 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        data-x="concept-canvas-origin-clean">origin-clean</span> flag of <var>imageBitmap</var>'s
        bitmap to false.</p></li>
 
-       <li>
-        <p>Run this step <span>in parallel</span>:</p>
-
-        <ol>
-         <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
-        </ol>
-       </li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
 
@@ -119204,13 +119196,8 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        data-x="concept-canvas-origin-clean">origin-clean</span> flag of <var>image</var>'s
        bitmap.</p></li>
 
-       <li>
-        <p>Run this step <span>in parallel</span>:</p>
-
-        <ol>
-         <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
-        </ol>
-       </li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
 
@@ -119220,9 +119207,10 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
 
       <ol>
        <li><p>Let <var>imageData</var> be the result of reading <var>image</var>'s data. If an <span
-       data-x="file-error-read">error occurs during reading of the object</span>, then reject
-       <var>p</var> with an <span>"<code>InvalidStateError</code>"</span> <code>DOMException</code>
-       and abort these steps.</p></li>
+       data-x="file-error-read">error occurs during reading of the object</span>, then <span>queue a
+       global task</span>, using the <span>bitmap task source</span>, to reject <var>promise</var>
+       with an <span>"<code>InvalidStateError</code>"</span> <code>DOMException</code> and abort
+       these steps.</p></li>
 
        <li><p>Apply the <span data-x="Content-Type sniffing: image">image sniffing rules</span> to
        determine the file format of <var>imageData</var>, with MIME type of <var>image</var> (as
@@ -119231,9 +119219,10 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
 
        <li><p>If <var>imageData</var> is not in a supported image file format (e.g., it's not an
        image at all), or if <var>imageData</var> is corrupted in some fatal way such that the image
-       dimensions cannot be obtained (e.g., a vector graphic with no natural size), then reject
-       <var>p</var> with an <span>"<code>InvalidStateError</code>"</span> <code>DOMException</code>
-       and abort these steps.</p></li>
+       dimensions cannot be obtained (e.g., a vector graphic with no natural size), then <span>queue
+       a global task</span>, using the <span>bitmap task source</span>, to reject <var>promise</var>
+       with an <span>"<code>InvalidStateError</code>"</span> <code>DOMException</code> and abort
+       these steps.</p></li>
 
        <li><p>Set <var>imageBitmap</var>'s <span data-x="concept-ImageBitmap-bitmap-data">bitmap
        data</span> to <var>imageData</var>, <span>cropped to the source rectangle with
@@ -119243,7 +119232,8 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        is not supported or is disabled), or, if there is no such image, the first frame of the
        animation.</p></li>
 
-       <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
 
@@ -119262,13 +119252,8 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        data</span> to <var>image</var>'s image data, <span>cropped to the source rectangle with
        formatting</span>.</p></li>
 
-       <li>
-        <p>Run this step <span>in parallel</span>:</p>
-
-        <ol>
-         <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
-        </ol>
-       </li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
 
@@ -119285,13 +119270,8 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        data-x="concept-canvas-origin-clean">origin-clean</span> flag of <var>image</var>'s
        bitmap.</p></li>
 
-       <li>
-        <p>Run this step <span>in parallel</span>:</p>
-
-        <ol>
-         <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
-        </ol>
-       </li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
 
@@ -119302,19 +119282,14 @@ dictionary <dfn dictionary>ImageBitmapOptions</dfn> {
        data</span> to a copy of <var>image</var>'s visible pixel data, <span>cropped to the source
        rectangle with formatting</span>.</p></li>
 
-       <li>
-        <p>Run this step <span>in parallel</span>:</p>
-
-        <ol>
-         <li><p>Resolve <var>p</var> with <var>imageBitmap</var>.</p></li>
-        </ol>
-       </li>
+       <li><p><span>Queue a global task</span>, using the <span>bitmap task source</span>, to
+       resolve <var>promise</var> with <var>imageBitmap</var>.</p></li>
       </ol>
      </dd>
     </dl>
    </li>
 
-   <li><p>Return <var>p</var>.</p></li>
+   <li><p>Return <var>promise</var>.</p></li>
   </ol>
 
   <p>When the steps above require that the user agent <dfn data-x="cropped to the source