diff -r 000000000000 -r 4f2f89ce4247 WebCore/bindings/js/JSCallbackData.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/WebCore/bindings/js/JSCallbackData.cpp	Fri Sep 17 09:02:29 2010 +0300
@@ -0,0 +1,85 @@
+/*
+ * Copyright (C) 2007, 2008, 2009 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1.  Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ * 2.  Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ * 3.  Neither the name of Apple Computer, Inc. ("Apple") nor the names of
+ *     its contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE AND ITS CONTRIBUTORS "AS IS" AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL APPLE OR ITS CONTRIBUTORS BE LIABLE FOR ANY
+ * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "config.h"
+#include "JSCallbackData.h"
+
+#include "Document.h"
+#include "JSDOMBinding.h"
+#include "JSMainThreadExecState.h"
+
+using namespace JSC;
+    
+namespace WebCore {
+
+void JSCallbackData::deleteData(void* context)
+{
+    delete static_cast<JSCallbackData*>(context);
+}
+
+JSValue JSCallbackData::invokeCallback(MarkedArgumentBuffer& args, bool* raisedException)
+{
+    ASSERT(callback());
+    ASSERT(globalObject());
+
+    ExecState* exec = globalObject()->globalExec();
+    JSValue function = callback()->get(exec, Identifier(exec, "handleEvent"));
+
+    CallData callData;
+    CallType callType = getCallData(function, callData);
+    if (callType == CallTypeNone) {
+        callType = callback()->getCallData(callData);
+        if (callType == CallTypeNone)
+            return JSValue();
+        function = callback();
+    }
+    
+    globalObject()->globalData()->timeoutChecker.start();
+    ScriptExecutionContext* context = globalObject()->scriptExecutionContext();
+    // We will fail to get the context if the frame has been detached.
+    if (!context)
+        return JSValue();
+
+    JSValue result = context->isDocument() 
+        ? JSMainThreadExecState::call(exec, function, callType, callData, callback(), args)
+        : JSC::call(exec, function, callType, callData, callback(), args);
+    globalObject()->globalData()->timeoutChecker.stop();
+
+    Document::updateStyleForAllDocuments();
+
+    if (exec->hadException()) {
+        reportCurrentException(exec);
+        if (raisedException)
+            *raisedException = true;
+        return result;
+    }
+    
+    return result;
+}
+    
+} // namespace WebCore