[gow] (2) Change how the intrinsic ratio is applied to match implemen…

…tations.

git-svn-id: http://svn.whatwg.org/webapps@3867 340c8d12-0b0e-0410-8428-c7bf67bfef74

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   for the format used by the resource. If an anamorphic format does
   not define how to apply the aspect ratio to the video data's
   dimensions to obtain the "correct" dimensions, then the user agent
-  must assume that the ratio is applied by adjusting the horizontal
-  dimension only.</p>
+  must apply the ratio by increasing one dimension and leaving the
+  other unchanged.</p>
 
   <p>The <dfn id=dom-video-videowidth title=dom-video-videoWidth><code>videoWidth</code></dfn> IDL
   attribute must return the <a href=#concept-video-intrinsic-width title=concept-video-intrinsic-width>intrinsic width</a> of the

source

   for the format used by the resource. If an anamorphic format does
   not define how to apply the aspect ratio to the video data's
   dimensions to obtain the "correct" dimensions, then the user agent
-  must assume that the ratio is applied by adjusting the horizontal
-  dimension only.</p>
+  must apply the ratio by increasing one dimension and leaving the
+  other unchanged.</p>
 
   <p>The <dfn
   title="dom-video-videoWidth"><code>videoWidth</code></dfn> IDL