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diff --git a/Source/WebKit/chromium/public/WebDragData.h b/Source/WebKit/chromium/public/WebDragData.h
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+++ b/Source/WebKit/chromium/public/WebDragData.h
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+/*
+ * Copyright (C) 2009 Google 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:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *     * 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.
+ *     * Neither the name of Google Inc. 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 THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
+ * OWNER 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 WebDragData_h
+#define WebDragData_h
+
+#include "WebCommon.h"
+
+#if WEBKIT_IMPLEMENTATION
+namespace WebCore { class ChromiumDataObject; }
+namespace WTF { template <typename T> class PassRefPtr; }
+#endif
+
+namespace WebKit {
+
+class WebData;
+class WebDragDataPrivate;
+class WebString;
+class WebURL;
+template <typename T> class WebVector;
+
+// Holds data that may be exchanged through a drag-n-drop operation.  It is
+// inexpensive to copy a WebDragData object.
+class WebDragData {
+public:
+    ~WebDragData() { reset(); }
+
+    WebDragData() : m_private(0) { }
+    WebDragData(const WebDragData& d) : m_private(0) { assign(d); }
+    WebDragData& operator=(const WebDragData& d)
+    {
+        assign(d);
+        return *this;
+    }
+
+    WEBKIT_API void initialize();
+    WEBKIT_API void reset();
+    WEBKIT_API void assign(const WebDragData&);
+
+    bool isNull() const { return !m_private; }
+
+    WEBKIT_API WebString url() const;
+    WEBKIT_API void setURL(const WebURL&);
+
+    WEBKIT_API WebString urlTitle() const;
+    WEBKIT_API void setURLTitle(const WebString&);
+
+    WEBKIT_API WebString downloadMetadata() const;
+    WEBKIT_API void setDownloadMetadata(const WebString&);
+
+    WEBKIT_API WebString fileExtension() const;
+    WEBKIT_API void setFileExtension(const WebString&);
+
+    WEBKIT_API bool containsFilenames() const;
+    WEBKIT_API void filenames(WebVector<WebString>&) const;
+    WEBKIT_API void setFilenames(const WebVector<WebString>&);
+    WEBKIT_API void appendToFilenames(const WebString&);
+
+    WEBKIT_API WebString plainText() const;
+    WEBKIT_API void setPlainText(const WebString&);
+
+    WEBKIT_API WebString htmlText() const;
+    WEBKIT_API void setHTMLText(const WebString&);
+
+    WEBKIT_API WebURL htmlBaseURL() const;
+    WEBKIT_API void setHTMLBaseURL(const WebURL&);
+
+    WEBKIT_API WebString fileContentFilename() const;
+    WEBKIT_API void setFileContentFilename(const WebString&);
+
+    WEBKIT_API WebData fileContent() const;
+    WEBKIT_API void setFileContent(const WebData&);
+
+#if WEBKIT_IMPLEMENTATION
+    WebDragData(const WTF::PassRefPtr<WebCore::ChromiumDataObject>&);
+    WebDragData& operator=(const WTF::PassRefPtr<WebCore::ChromiumDataObject>&);
+    operator WTF::PassRefPtr<WebCore::ChromiumDataObject>() const;
+#endif
+
+private:
+    void assign(WebDragDataPrivate*);
+    void ensureMutable();
+    WebDragDataPrivate* m_private;
+};
+
+} // namespace WebKit
+
+#endif