Add back three deprecated DOM APIs removed from Chrome 34

Source/core/frame/UseCounter.cpp

Index: Source/core/frame/UseCounter.cpp
diff --git a/Source/core/frame/UseCounter.cpp b/Source/core/frame/UseCounter.cpp
index decf0a1c79281adf204f0eacade3e89615397dd2..e385f639b1ea5dab4423d24c7a540d0982412d45 100644
--- a/Source/core/frame/UseCounter.cpp
+++ b/Source/core/frame/UseCounter.cpp
@@ -710,6 +710,15 @@ String UseCounter::deprecationMessage(Feature feature)
     case HTMLHtmlElementManifest:
         return "'HTMLHtmlElement.manifest' is deprecated. The manifest attribute only has an effect during the early stages of document load.";
 
+    case DocumentCreateAttributeNS:
+        return "'Document.createAttributeNS' is deprecated and has been removed from DOM4 (w3.org/tr/dom).";

[abarth-chromium, 2014/04/18 19:19:57]

Can we give full URLs that clickable?  http://www.w3.org/TR/dom/

+
+    case AttributeOwnerElement:
+        return "'Attr.ownerElement' is deprecated and has been removed from DOM4 (w3.org/tr/dom).";
+
+    case ElementSetAttributeNodeNS:
+        return "'Element.setAttributeNodeNS' is deprecated and has been removed from DOM4 (w3.org/tr/dom).";
+
     // Features that aren't deprecated don't have a deprecation message.
     default:
         return String();