Implement computedRole and computedName (behind a flag)

Source/core/dom/Node.idl

Index: Source/core/dom/Node.idl
diff --git a/Source/core/dom/Node.idl b/Source/core/dom/Node.idl
index 7833d9d2e599a0b4a274efc3aba655b2c092f768..68939019786f38a260774bcd24c23736aed64d1e 100644
--- a/Source/core/dom/Node.idl
+++ b/Source/core/dom/Node.idl
@@ -66,6 +66,9 @@
 
     [TreatReturnedNullStringAs=Null, TreatNullAs=NullString, TreatUndefinedAs=NullString, CustomElementCallbacks] attribute DOMString textContent;
 
+    readonly attribute DOMString? computedRole;

[dmazzoni, 2014/12/03 23:32:13]

I think you want something like [RuntimeEnabled = ExperimentalAccessibilityAPIs]
or something like that.

[aboxhall, 2014/12/08 23:50:59]

Will figure that out later :)

+    readonly attribute DOMString? computedText;
+
     [MeasureAs=NodeIsSameNode] boolean isSameNode([Default=Undefined] optional Node other); // Removed in DOM4.
     boolean isEqualNode(Node other);
     DOMString? lookupPrefix(DOMString? namespaceURI);