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diff --git a/src/3rdparty/webkit/WebCore/platform/network/ResourceErrorBase.h b/src/3rdparty/webkit/WebCore/platform/network/ResourceErrorBase.h
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+++ b/src/3rdparty/webkit/WebCore/platform/network/ResourceErrorBase.h
@@ -0,0 +1,88 @@
+/*
+ * Copyright (C) 2006 Apple Computer, 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 COMPUTER, 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 COMPUTER, 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 ResourceErrorBase_h
+#define ResourceErrorBase_h
+
+#include "PlatformString.h"
+
+namespace WebCore {
+
+class ResourceError;
+
+class ResourceErrorBase {
+public:
+    bool isNull() const { return m_isNull; }
+
+    const String& domain() const { lazyInit(); return m_domain; }
+    int errorCode() const { lazyInit(); return m_errorCode; }
+    const String& failingURL() const { lazyInit(); return m_failingURL; }
+    const String& localizedDescription() const { lazyInit(); return m_localizedDescription; }
+
+    void setIsCancellation(bool isCancellation) { m_isCancellation = isCancellation; }
+    bool isCancellation() const { return m_isCancellation; }
+
+    static bool compare(const ResourceError& a, const ResourceError& b);
+
+protected:
+    ResourceErrorBase()
+        : m_errorCode(0)
+        , m_isNull(true)
+        , m_isCancellation(false)
+    {
+    }
+
+    ResourceErrorBase(const String& domain, int errorCode, const String& failingURL, const String& localizedDescription)
+        : m_domain(domain)
+        , m_errorCode(errorCode)
+        , m_failingURL(failingURL)
+        , m_localizedDescription(localizedDescription)
+        , m_isNull(false)
+        , m_isCancellation(false)
+    {
+    }
+
+    void lazyInit() const;
+
+    // The ResourceError subclass may "shadow" this method to lazily initialize platform specific fields
+    void platformLazyInit() {}
+
+    // The ResourceError subclass may "shadow" this method to compare platform specific fields
+    static bool platformCompare(const ResourceError&, const ResourceError&) { return true; }
+
+    String m_domain;
+    int m_errorCode;
+    String m_failingURL;
+    String m_localizedDescription;
+    bool m_isNull;
+    bool m_isCancellation;
+};
+
+inline bool operator==(const ResourceError& a, const ResourceError& b) { return ResourceErrorBase::compare(a, b); }
+inline bool operator!=(const ResourceError& a, const ResourceError& b) { return !(a == b); }
+
+} // namespace WebCore
+
+#endif // ResourceErrorBase_h_