Implement DOM: prepend, append, before, after & replaceWith

Source/core/dom/ChildNode.idl

Index: Source/core/dom/ChildNode.idl
diff --git a/Source/core/dom/ChildNode.idl b/Source/core/dom/ChildNode.idl
index 8c2f9f3ac096a566b4af2a8f7ad23645dcfc7512..d51122e33c59a515794f4588d614609e43999300 100644
--- a/Source/core/dom/ChildNode.idl
+++ b/Source/core/dom/ChildNode.idl
@@ -26,9 +26,8 @@
     LegacyTreatAsPartialInterface,
     NoInterfaceObject, // Always used on target of 'implements'
 ] interface ChildNode {
-    // [Unscopeable] void before((Node or DOMString)... nodes);
-    // [Unscopeable] void after((Node or DOMString)... nodes);
-    // [Unscopeable] void replaceWith((Node or DOMString)... nodes);
-    // TODO(philipj): remove() should be [Unscopeable]. crbug.com/462916
-    [RaisesException, CustomElementCallbacks] void remove();
+    [Unscopeable, RaisesException, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void before((Node or DOMString) ... Nodes);

[philipj_slow, 2015/06/09 12:48:32]

Nodes should not be capitalized here.

[Paritosh Kumar, 2015/06/12 15:55:37]

Done.

+    [Unscopeable, RaisesException, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void after((Node or DOMString)... nodes);
+    [Unscopeable, RaisesException, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void replaceWith((Node or DOMString)... nodes);
+    [Unscopeable, RaisesException, CustomElementCallbacks] void remove();
 };