Add srgb-linear and display-p3-linear to PredefinedColorSpace

See #11526 for context.

Author: ccameron-chromium

source

@@ -3773,7 +3773,9 @@ a.setAttribute('href', 'https://example.com/'); // change the content attribute
      <li><dfn data-x-href="https://drafts.csswg.org/css-color/#opaque-black">opaque black</dfn></li>
      <li><dfn data-x-href="https://drafts.csswg.org/css-color/#transparent-black">transparent black</dfn></li>
      <li><dfn data-x-href="https://drafts.csswg.org/css-color/#valdef-color-srgb">'srgb'</dfn> color space</li>
+     <li><dfn data-x-href="https://drafts.csswg.org/css-color/#valdef-color-srgb-linear">'srgb-linear'</dfn> color space</li>
      <li><dfn data-x-href="https://drafts.csswg.org/css-color/#valdef-color-display-p3">'display-p3'</dfn> color space</li>
+     <li><dfn data-x-href="https://drafts.csswg.org/css-color/#display-p3-linear-space">'display-p3-linear'</dfn> color space</li>
      <li><dfn data-x-href="https://drafts.csswg.org/css-color-5/#valdef-color-profile-rendering-intent-relative-colorimetric">'relative-colorimetric'</dfn> rendering intent</li>
      <li><dfn id="parsed-as-a-css-color-value" data-x-href="https://drafts.csswg.org/css-color/#parse-a-css-color-value">parse a CSS &lt;color> value</dfn></li>
      <li><!--en-GB--><dfn id="serialisation-of-a-color" data-x-href="https://drafts.csswg.org/css-color/#serializing-color-values">serialize a CSS &lt;color> value</dfn> including <dfn data-x-href="https://drafts.csswg.org/css-color/#color-serialization-html-compatible-serialization-is-requested">HTML-compatible serialization is requested</dfn></li>
@@ -75583,7 +75585,7 @@ interface <dfn interface>OffscreenCanvasRenderingContext2D</dfn> {
   <!--en-GB--><h5 id="colour-spaces-and-colour-correction">Color spaces and color space
   conversion</h5>
 
-  <pre><code class="idl">enum <dfn enum>PredefinedColorSpace</dfn> { "<span data-x="dom-PredefinedColorSpace-srgb">srgb</span>", "<span data-x="dom-PredefinedColorSpace-display-p3">display-p3</span>" };</code></pre>
+  <pre><code class="idl">enum <dfn enum>PredefinedColorSpace</dfn> { "<span data-x="dom-PredefinedColorSpace-srgb">srgb</span>", "<span data-x="dom-PredefinedColorSpace-srgb-linear">srgb-linear</span>", "<span data-x="dom-PredefinedColorSpace-display-p3">display-p3</span>", "<span data-x="dom-PredefinedColorSpace-display-p3-linear">display-p3-linear</span>" };</code></pre>
 
   <p>The <code>PredefinedColorSpace</code> enumeration is used to specify the <span
   data-x="concept-canvas-color-space">color space</span> of the canvas's backing store.</p>
@@ -75592,10 +75594,18 @@ interface <dfn interface>OffscreenCanvasRenderingContext2D</dfn> {
   data-x="dom-PredefinedColorSpace-srgb">srgb</code></dfn>" value indicates the <span>'srgb'</span>
   color space.</p>
 
+  <p>The "<dfn enum-value for="PredefinedColorSpace"><code
+  data-x="dom-PredefinedColorSpace-srgb-linear">srgb-linear</code></dfn>" value indicates the
+  <span>'srgb-linear'</span> color space.</p>
+
   <p>The "<dfn enum-value for="PredefinedColorSpace"><code
   data-x="dom-PredefinedColorSpace-display-p3">display-p3</code></dfn>" value indicates the
   <span>'display-p3'</span> color space.</p>
 
+  <p>The "<dfn enum-value for="PredefinedColorSpace"><code
+  data-x="dom-PredefinedColorSpace-display-p3-linear">display-p3-linear</code></dfn>" value indicates the
+  <span>'display-p3-linear'</span> color space.</p>
+
   <p><span data-x="Converting Colors">Color space conversion</span> must be applied to the canvas's
   backing store when rendering the canvas to the output device.</p>