Implement WindowEventHandlers

Source/core/frame/Window.idl

Index: Source/core/frame/Window.idl
diff --git a/Source/core/frame/Window.idl b/Source/core/frame/Window.idl
index beb9c217bd9bbb5931f5dd37ed98ab06d011ba7e..86dd8e0bcb93afd4b418683936cc27567aad5200 100644
--- a/Source/core/frame/Window.idl
+++ b/Source/core/frame/Window.idl
@@ -174,26 +174,15 @@
     [RuntimeEnabled=CSSAnimationUnprefixed] attribute EventHandler onanimationend;
     [RuntimeEnabled=CSSAnimationUnprefixed] attribute EventHandler onanimationiteration;
     [RuntimeEnabled=CSSAnimationUnprefixed] attribute EventHandler onanimationstart;
-    attribute EventHandler onbeforeunload;
     [RuntimeEnabled=DeviceMotion] attribute EventHandler ondevicemotion;
     [RuntimeEnabled=DeviceOrientation] attribute EventHandler ondeviceorientation;
-    attribute EventHandler onhashchange;
-    attribute EventHandler onmessage;
-    attribute EventHandler onoffline;
-    attribute EventHandler ononline;
     [Conditional=ORIENTATION_EVENTS] attribute EventHandler onorientationchange;
-    attribute EventHandler onpagehide;
-    attribute EventHandler onpageshow;
-    attribute EventHandler onpopstate;
-    attribute EventHandler onresize;
     attribute EventHandler onsearch;
-    attribute EventHandler onstorage;
     [RuntimeEnabled=Touch] attribute EventHandler ontouchcancel;
     [RuntimeEnabled=Touch] attribute EventHandler ontouchend;
     [RuntimeEnabled=Touch] attribute EventHandler ontouchmove;
     [RuntimeEnabled=Touch] attribute EventHandler ontouchstart;
     attribute EventHandler ontransitionend;
-    attribute EventHandler onunload;
     attribute EventHandler onwebkitanimationend;
     attribute EventHandler onwebkitanimationiteration;
     attribute EventHandler onwebkitanimationstart;
@@ -250,4 +239,5 @@
 Window implements GlobalEventHandlers;
 Window implements ImageBitmapFactories;
 Window implements WindowBase64;
+Window implements WindowEventHandlers;
 Window implements WindowTimers;