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diff --git a/Source/JavaScriptCore/debugger/Breakpoint.h b/Source/JavaScriptCore/debugger/Breakpoint.h
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+++ b/Source/JavaScriptCore/debugger/Breakpoint.h
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+/*
+ * Copyright (C) 2013 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.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``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 INC. OR
+ * 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 Breakpoint_h
+#define Breakpoint_h
+
+#include "DebuggerPrimitives.h"
+#include <wtf/DoublyLinkedList.h>
+#include <wtf/RefCounted.h>
+#include <wtf/text/WTFString.h>
+
+namespace JSC {
+
+struct Breakpoint : public DoublyLinkedListNode<Breakpoint> {
+    Breakpoint()
+    {
+    }
+
+    Breakpoint(SourceID sourceID, unsigned line, unsigned column, const String& condition, bool autoContinue, unsigned ignoreCount)
+        : sourceID(sourceID)
+        , line(line)
+        , column(column)
+        , condition(condition)
+        , autoContinue(autoContinue)
+        , ignoreCount(ignoreCount)
+    {
+    }
+
+    Breakpoint(const Breakpoint& other)
+        : id(other.id)
+        , sourceID(other.sourceID)
+        , line(other.line)
+        , column(other.column)
+        , condition(other.condition)
+        , autoContinue(other.autoContinue)
+        , ignoreCount(other.ignoreCount)
+        , hitCount(other.hitCount)
+    {
+    }
+
+    BreakpointID id { noBreakpointID };
+    SourceID sourceID { noSourceID };
+    unsigned line { 0 };
+    unsigned column { 0 };
+    String condition;
+    bool autoContinue { false };
+    unsigned ignoreCount { 0 };
+    unsigned hitCount { 0 };
+
+    static const unsigned unspecifiedColumn = UINT_MAX;
+
+private:
+    Breakpoint* m_prev;
+    Breakpoint* m_next;
+
+    friend class WTF::DoublyLinkedListNode<Breakpoint>;
+};
+
+class BreakpointsList : public DoublyLinkedList<Breakpoint>,
+    public RefCounted<BreakpointsList> {
+public:
+    ~BreakpointsList()
+    {
+        Breakpoint* breakpoint;
+        while ((breakpoint = removeHead()))
+            delete breakpoint;
+        ASSERT(isEmpty());
+    }
+};
+
+} // namespace JSC
+
+#endif // Breakpoint_h