Add [CEReactions] IDL attributes for Custom Elements V1

third_party/WebKit/Source/core/dom/ChildNode.idl

Index: third_party/WebKit/Source/core/dom/ChildNode.idl
diff --git a/third_party/WebKit/Source/core/dom/ChildNode.idl b/third_party/WebKit/Source/core/dom/ChildNode.idl
index 0b0168ecc06b0ccbdc1d3fed3ecce6d6731fc2fe..6c3de06ade4ceacb379000a8227833ed9e97fc87 100644
--- a/third_party/WebKit/Source/core/dom/ChildNode.idl
+++ b/third_party/WebKit/Source/core/dom/ChildNode.idl
@@ -26,8 +26,8 @@
     LegacyTreatAsPartialInterface,
     NoInterfaceObject, // Always used on target of 'implements'
 ] interface ChildNode {
-    [Unscopeable, RaisesException, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void before((Node or DOMString) ... nodes);
-    [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();
+    [Unscopeable, RaisesException, CEReactions, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void before((Node or DOMString) ... nodes);
+    [Unscopeable, RaisesException, CEReactions, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void after((Node or DOMString)... nodes);
+    [Unscopeable, RaisesException, CEReactions, CustomElementCallbacks, RuntimeEnabled=DOMConvenienceAPI] void replaceWith((Node or DOMString)... nodes);
+    [Unscopeable, RaisesException, CEReactions, CustomElementCallbacks] void remove();
 };