Merge 171971 "Add back three deprecated DOM APIs removed from Ch..."

Source/core/frame/UseCounter.cpp

Index: Source/core/frame/UseCounter.cpp
===================================================================
--- Source/core/frame/UseCounter.cpp	(revision 172146)
+++ Source/core/frame/UseCounter.cpp	(working copy)
@@ -712,6 +712,15 @@
     case PrefixedCancelRequestAnimationFrame:
         return "'webkitCancelRequestAnimationFrame' is vendor-specific. Please use the standard 'cancelAnimationFrame' instead.";
 
+    case DocumentCreateAttributeNS:
+        return "'Document.createAttributeNS' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).";
+
+    case AttributeOwnerElement:
+        return "'Attr.ownerElement' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).";
+
+    case ElementSetAttributeNodeNS:
+        return "'Element.setAttributeNodeNS' is deprecated and has been removed from DOM4 (http://w3.org/tr/dom).";
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();