Explore the possibility of implementing the CSS Region interface.

Source/core/dom/PseudoElement.idl

Index: Source/core/dom/PseudoElement.idl
diff --git a/Source/core/css/WebKitCSSMixFunctionValue.idl b/Source/core/dom/PseudoElement.idl
similarity index 89%
copy from Source/core/css/WebKitCSSMixFunctionValue.idl
copy to Source/core/dom/PseudoElement.idl
index 57f3125d6dfc64270294184875b5ce44d978a740..388dbf0c66b1fb3a07400220c9c87412208cf7ab 100644
--- a/Source/core/css/WebKitCSSMixFunctionValue.idl
+++ b/Source/core/dom/PseudoElement.idl
@@ -1,5 +1,5 @@
 /*
- * Copyright (C) 2012 Adobe Systems Incorporated. All rights reserved.
+ * Copyright (C) 2013 Adobe Systems Incorporated. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -27,8 +27,7 @@
  * SUCH DAMAGE.
  */
 
-[
-    ImplementedAs=CSSMixFunctionValue
-] interface WebKitCSSMixFunctionValue : CSSValueList {
+interface PseudoElement {

[abarth-chromium, 2013/11/14 07:55:15]

This probably needs NoInterfaceObject, right?

[abucur, 2013/11/15 07:15:14]

Yes. I forgot to add it.

 };
 
+PseudoElement implements CSSRegion;