--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebCore/platform/SharedBuffer.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,87 @@
+/*
+ * 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 SharedBuffer_h
+#define SharedBuffer_h
+
+#include "PlatformString.h"
+#include "Shared.h"
+#include <wtf/Forward.h>
+#include <wtf/Vector.h>
+
+#if PLATFORM(MAC)
+#include <wtf/RetainPtr.h>
+
+#ifdef __OBJC__
+@class NSData;
+#else
+class NSData;
+#endif
+
+#endif
+
+namespace WebCore {
+
+class SharedBuffer : public Shared<SharedBuffer> {
+public:
+    SharedBuffer();
+    SharedBuffer(const char*, int);
+    SharedBuffer(const unsigned char*, int);
+
+    static PassRefPtr<SharedBuffer> createWithContentsOfFile(const String& filePath);
+    
+#if PLATFORM(MAC)
+    NSData *createNSData();
+    CFDataRef createCFData();
+    static PassRefPtr<SharedBuffer> wrapNSData(NSData *data);
+#endif
+        
+    const char* data() const;
+    unsigned size() const;
+    const Vector<char> &buffer() { return m_buffer; }
+
+    bool isEmpty() const { return size() == 0; }
+
+    void append(const char*, int);
+    void clear();
+    const char* platformData() const;
+    unsigned platformDataSize() const;
+
+    PassRefPtr<SharedBuffer> copy() const;
+    
+private:
+    void clearPlatformData();
+    void maybeTransferPlatformData();
+    bool hasPlatformData() const;
+    
+    Vector<char> m_buffer;
+#if PLATFORM(MAC)
+    SharedBuffer(NSData *nsdata);
+    RetainPtr<NSData> m_nsData;
+#endif
+};
+    
+}
+
+#endif