diff -r 000000000000 -r dd21522fd290 webengine/osswebengine/WebKit/win/MemoryStream.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/webengine/osswebengine/WebKit/win/MemoryStream.h	Mon Mar 30 12:54:55 2009 +0300
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2006, 2007 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 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 MemoryStream_H
+#define MemoryStream_H
+
+#include <objidl.h>
+
+#include "COMPtr.h"
+#include <WebCore/SharedBuffer.h>
+#include <WTF/PassRefPtr.h>
+#include <WTF/RefPtr.h>
+
+class MemoryStream : public IStream
+{
+public:
+    static MemoryStream* MemoryStream::createInstance(PassRefPtr<WebCore::SharedBuffer> buffer);
+
+protected:
+    MemoryStream(PassRefPtr<WebCore::SharedBuffer> buffer);
+    ~MemoryStream();
+public:
+
+    // IUnknown
+    virtual HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, void** ppvObject);
+    virtual ULONG STDMETHODCALLTYPE AddRef(void);
+    virtual ULONG STDMETHODCALLTYPE Release(void);
+
+    // ISequentialStream
+    virtual /* [local] */ HRESULT STDMETHODCALLTYPE Read( 
+        /* [length_is][size_is][out] */ void* pv,
+        /* [in] */ ULONG cb,
+        /* [out] */ ULONG* pcbRead);
+    
+    virtual /* [local] */ HRESULT STDMETHODCALLTYPE Write( 
+        /* [size_is][in] */ const void* pv,
+        /* [in] */ ULONG cb,
+        /* [out] */ ULONG* pcbWritten);
+
+    // IStream
+    virtual /* [local] */ HRESULT STDMETHODCALLTYPE Seek( 
+        /* [in] */ LARGE_INTEGER dlibMove,
+        /* [in] */ DWORD dwOrigin,
+        /* [out] */ ULARGE_INTEGER* plibNewPosition);
+    
+    virtual HRESULT STDMETHODCALLTYPE SetSize( 
+        /* [in] */ ULARGE_INTEGER libNewSize);
+    
+    virtual /* [local] */ HRESULT STDMETHODCALLTYPE CopyTo( 
+        /* [unique][in] */ IStream* pstm,
+        /* [in] */ ULARGE_INTEGER cb,
+        /* [out] */ ULARGE_INTEGER* pcbRead,
+        /* [out] */ ULARGE_INTEGER* pcbWritten);
+    
+    virtual HRESULT STDMETHODCALLTYPE Commit( 
+        /* [in] */ DWORD grfCommitFlags);
+    
+    virtual HRESULT STDMETHODCALLTYPE Revert( void);
+    
+    virtual HRESULT STDMETHODCALLTYPE LockRegion( 
+        /* [in] */ ULARGE_INTEGER libOffset,
+        /* [in] */ ULARGE_INTEGER cb,
+        /* [in] */ DWORD dwLockType);
+    
+    virtual HRESULT STDMETHODCALLTYPE UnlockRegion( 
+        /* [in] */ ULARGE_INTEGER libOffset,
+        /* [in] */ ULARGE_INTEGER cb,
+        /* [in] */ DWORD dwLockType);
+    
+    virtual HRESULT STDMETHODCALLTYPE Stat( 
+        /* [out] */ STATSTG* pstatstg,
+        /* [in] */ DWORD grfStatFlag);
+    
+    virtual HRESULT STDMETHODCALLTYPE Clone( 
+        /* [out] */ IStream** ppstm);
+
+protected:
+    ULONG m_refCount;
+    RefPtr<WebCore::SharedBuffer> m_buffer;
+    size_t m_pos;
+};
+
+#endif