Implement WindowEventHandlers

Source/core/html/HTMLBodyElement.idl

Index: Source/core/html/HTMLBodyElement.idl
diff --git a/Source/core/html/HTMLBodyElement.idl b/Source/core/html/HTMLBodyElement.idl
index d96c36dbfac0b22b21f2ae18b448814586edb0aa..3ce7850df39a4fb031298bb0d9e68ef225448819 100644
--- a/Source/core/html/HTMLBodyElement.idl
+++ b/Source/core/html/HTMLBodyElement.idl
@@ -26,17 +26,6 @@ interface HTMLBodyElement : HTMLElement {
     [Reflect, TreatNullAs=NullString] attribute DOMString text;
     [Reflect, TreatNullAs=NullString] attribute DOMString vLink;
 
-    // Event handler attributes
-    attribute EventHandler onbeforeunload;
-    attribute EventHandler onhashchange;
-    attribute EventHandler onmessage;
-    attribute EventHandler onoffline;
-    attribute EventHandler ononline;
-    attribute EventHandler onpopstate;
-    attribute EventHandler onresize;
-    attribute EventHandler onstorage;
-    attribute EventHandler onunload;
-
     [Conditional=ORIENTATION_EVENTS] attribute EventHandler onorientationchange;
 
     // Overrides of GlobalEventHandler attributes
@@ -45,11 +34,6 @@ interface HTMLBodyElement : HTMLElement {
     attribute EventHandler onfocus;
     attribute EventHandler onload;
     attribute EventHandler onscroll;
-
-    // Not implemented yet.
-    // attribute EventHandler onafterprint;
-    // attribute EventHandler onbeforeprint;
-    // attribute EventHandler onredo;
-    // attribute EventHandler onundo;
 };
 
+HTMLBodyElement implements WindowEventHandlers;