Merge pull request #582 from youennf/videodecoderconfig-description-allowshared

Make VideoDecoderConfig.description AllowShared

Author: dalecurtis

index.src.html

@@ -1958,7 +1958,7 @@
 <xmp class='idl'>
 dictionary VideoDecoderConfig {
   required DOMString codec;
-  BufferSource description;
+  [AllowShared] BufferSource description;
   [EnforceRange] unsigned long codedWidth;
   [EnforceRange] unsigned long codedHeight;
   [EnforceRange] unsigned long displayAspectWidth;