Remove beforeload events.

Source/core/html/HTMLFrameElementBase.cpp

Index: Source/core/html/HTMLFrameElementBase.cpp
diff --git a/Source/core/html/HTMLFrameElementBase.cpp b/Source/core/html/HTMLFrameElementBase.cpp
index a162cb8de6e4c23f5007fcb98c5b90b48d8d9130..f63b30b664d1bb23f11636bd2666f42a885f838d 100644
--- a/Source/core/html/HTMLFrameElementBase.cpp
+++ b/Source/core/html/HTMLFrameElementBase.cpp
@@ -124,9 +124,7 @@ void HTMLFrameElementBase::parseAttribute(const QualifiedName& name, const Atomi
         else if (equalIgnoringCase(value, "no"))
             m_scrolling = ScrollbarAlwaysOff;
         // FIXME: If we are already attached, this has no effect.
-    } else if (name == onbeforeloadAttr)
-        setAttributeEventListener(EventTypeNames::beforeload, createAttributeEventListener(this, name, value));
-    else if (name == onbeforeunloadAttr) {
+    } else if (name == onbeforeunloadAttr) {
         // FIXME: should <frame> elements have beforeunload handlers?
         setAttributeEventListener(EventTypeNames::beforeunload, createAttributeEventListener(this, name, value));
     } else