Add [CEReactions] IDL attributes for Custom Elements V1

third_party/WebKit/Source/core/html/HTMLParamElement.idl

Index: third_party/WebKit/Source/core/html/HTMLParamElement.idl
diff --git a/third_party/WebKit/Source/core/html/HTMLParamElement.idl b/third_party/WebKit/Source/core/html/HTMLParamElement.idl
index cd4cb6779954da2c068a69b6f77a3f813fd9cd10..a711d71f2b2908ad50de76223a4cb864320c7489 100644
--- a/third_party/WebKit/Source/core/html/HTMLParamElement.idl
+++ b/third_party/WebKit/Source/core/html/HTMLParamElement.idl
@@ -20,11 +20,11 @@
 // https://html.spec.whatwg.org/#the-param-element
 
 interface HTMLParamElement : HTMLElement {
-    [Reflect] attribute DOMString name;
-    [Reflect] attribute DOMString value;
+    [CEReactions, Reflect] attribute DOMString name;
+    [CEReactions, Reflect] attribute DOMString value;
 
     // obsolete members
     // https://html.spec.whatwg.org/#HTMLParamElement-partial
-    [Reflect] attribute DOMString type;
-    [Reflect] attribute DOMString valueType;
+    [CEReactions, Reflect] attribute DOMString type;
+    [CEReactions, Reflect] attribute DOMString valueType;
 };