Refactoring: Get rid of isDocument() check in EventTarget.

Source/core/dom/ScriptExecutionContext.h

Index: Source/core/dom/ScriptExecutionContext.h
diff --git a/Source/core/dom/ScriptExecutionContext.h b/Source/core/dom/ScriptExecutionContext.h
index 6e6c3b30f17e08cd5b00283c6b386d75f397fa5b..ee4a31221af6fbe30cf3b1fc64d0a8b48cf84c46 100644
--- a/Source/core/dom/ScriptExecutionContext.h
+++ b/Source/core/dom/ScriptExecutionContext.h
@@ -44,6 +44,7 @@
 namespace WebCore {
 
 class ContextLifecycleNotifier;
+class DOMWindow;
 class DatabaseContext;
 class EventListener;
 class EventQueue;
@@ -63,6 +64,9 @@ public:
 
     virtual bool isJSExecutionForbidden() const = 0;
 
+    virtual DOMWindow* executingWindow() { return 0; }
+    virtual void userEventWasHandled() { }
+
     const KURL& url() const { return virtualURL(); }
     KURL completeURL(const String& url) const { return virtualCompleteURL(url); }