[e] (0) Mention the lack of HD support in the W3C spec.

Affected topics: HTML

git-svn-id: http://svn.whatwg.org/webapps@7396 340c8d12-0b0e-0410-8428-c7bf67bfef74

complete.html

@@ -1597,6 +1597,10 @@ <h6 class=no-toc id=how-do-the-whatwg-and-w3c-specifications-differ?><span class
    examples in a few places.</li> <!-- checkins for w3c bugs 18269,
    18266, 18250, 18222, 18286 -->
 
+   <li>The W3C HTML specification does not handle high-density backing stores for
+   <code><a href=#the-canvas-element>canvas</a></code> in a manner compatible with existing content.
+   <!-- and this is causing problems with the test suite: https://www.w3.org/Bugs/Public/show_bug.cgi?id=15042 -->
+
   </ul><p>The following sections are only published in the WHATWG
   specifications and are not currently available anywhere else:</p>
 

index

@@ -1597,6 +1597,10 @@
    examples in a few places.</li> <!-- checkins for w3c bugs 18269,
    18266, 18250, 18222, 18286 -->
 
+   <li>The W3C HTML specification does not handle high-density backing stores for
+   <code><a href=#the-canvas-element>canvas</a></code> in a manner compatible with existing content.
+   <!-- and this is causing problems with the test suite: https://www.w3.org/Bugs/Public/show_bug.cgi?id=15042 -->
+
   </ul><p>The following sections are only published in the WHATWG
   specifications and are not currently available anywhere else:</p>
 

source

@@ -315,6 +315,10 @@
    examples in a few places.</li> <!-- checkins for w3c bugs 18269,
    18266, 18250, 18222, 18286 -->
 
+   <li>The W3C HTML specification does not handle high-density backing stores for
+   <code>canvas</code> in a manner compatible with existing content.</p>
+   <!-- and this is causing problems with the test suite: https://www.w3.org/Bugs/Public/show_bug.cgi?id=15042 -->
+
   </ul>
 
   <p>The following sections are only published in the WHATWG