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diff --git a/Source/WebKit/mac/WebView/WebScriptDebugger.h b/Source/WebKit/mac/WebView/WebScriptDebugger.h
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+/*
+ * Copyright (C) 2008 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.
+ */
+
+#ifndef WebScriptDebugger_h
+#define WebScriptDebugger_h
+
+#include <heap/Strong.h>
+#include <debugger/Debugger.h>
+
+#include <wtf/RetainPtr.h>
+
+namespace JSC {
+    class DebuggerCallFrame;
+    class ExecState;
+    class JSGlobalObject;
+    class JSObject;
+    class ArgList;
+    class UString;
+}
+
+@class WebScriptCallFrame;
+
+NSString *toNSString(const JSC::UString&);
+
+class WebScriptDebugger : public JSC::Debugger {
+public:
+    WebScriptDebugger(JSC::JSGlobalObject*);
+
+    void initGlobalCallFrame(const JSC::DebuggerCallFrame&);
+
+    virtual void sourceParsed(JSC::ExecState*, JSC::SourceProvider*, int errorLine, const JSC::UString& errorMsg);
+    virtual void callEvent(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber);
+    virtual void atStatement(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber);
+    virtual void returnEvent(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber);
+    virtual void exception(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineNumber, bool hasHandler);
+    virtual void willExecuteProgram(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineno);
+    virtual void didExecuteProgram(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineno);
+    virtual void didReachBreakpoint(const JSC::DebuggerCallFrame&, intptr_t sourceID, int lineno);
+
+    JSC::JSGlobalObject* globalObject() const { return m_globalObject.get(); }
+    WebScriptCallFrame *globalCallFrame() const { return m_globalCallFrame.get(); }
+
+private:
+    bool m_callingDelegate;
+    RetainPtr<WebScriptCallFrame> m_topCallFrame;
+
+    JSC::Strong<JSC::JSGlobalObject> m_globalObject;
+    RetainPtr<WebScriptCallFrame> m_globalCallFrame;
+};
+
+#endif // WebScriptDebugger_h