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diff --git a/Source/WebKit/chromium/src/WebDragData.cpp b/Source/WebKit/chromium/src/WebDragData.cpp
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+++ b/Source/WebKit/chromium/src/WebDragData.cpp
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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.
+ */
+
+#include "config.h"
+#include "WebDragData.h"
+
+#include "ChromiumDataObject.h"
+#include "ChromiumDataObjectLegacy.h"
+#include "ClipboardMimeTypes.h"
+#include "WebData.h"
+#include "WebString.h"
+#include "WebURL.h"
+#include "WebVector.h"
+
+#include <wtf/PassRefPtr.h>
+
+using namespace WebCore;
+
+namespace WebKit {
+
+class WebDragDataPrivate : public ChromiumDataObject {
+};
+
+void WebDragData::initialize()
+{
+    assign(static_cast<WebDragDataPrivate*>(ChromiumDataObject::create(ChromiumDataObjectLegacy::create(Clipboard::DragAndDrop)).releaseRef()));
+}
+
+void WebDragData::reset()
+{
+    assign(0);
+}
+
+void WebDragData::assign(const WebDragData& other)
+{
+    WebDragDataPrivate* p = const_cast<WebDragDataPrivate*>(other.m_private);
+    if (p)
+        p->ref();
+    assign(p);
+}
+
+WebString WebDragData::url() const
+{
+    ASSERT(!isNull());
+    bool ignoredSuccess;
+    return m_private->getData(mimeTypeURL, ignoredSuccess);
+}
+
+void WebDragData::setURL(const WebURL& url)
+{
+    ensureMutable();
+    m_private->setData(mimeTypeURL, KURL(url).string());
+}
+
+WebString WebDragData::urlTitle() const
+{
+    ASSERT(!isNull());
+    return m_private->urlTitle();
+}
+
+void WebDragData::setURLTitle(const WebString& urlTitle)
+{
+    ensureMutable();
+    m_private->setUrlTitle(urlTitle);
+}
+
+WebString WebDragData::downloadMetadata() const
+{
+    ASSERT(!isNull());
+    bool ignoredSuccess;
+    return m_private->getData(mimeTypeDownloadURL, ignoredSuccess);
+}
+
+void WebDragData::setDownloadMetadata(const WebString& downloadMetadata)
+{
+    ensureMutable();
+    m_private->setData(mimeTypeDownloadURL, downloadMetadata);
+}
+
+WebString WebDragData::fileExtension() const
+{
+    ASSERT(!isNull());
+    return m_private->fileExtension();
+}
+
+void WebDragData::setFileExtension(const WebString& fileExtension)
+{
+    ensureMutable();
+    m_private->setFileExtension(fileExtension);
+}
+
+bool WebDragData::containsFilenames() const
+{
+    ASSERT(!isNull());
+    return m_private->containsFilenames();
+}
+
+void WebDragData::filenames(WebVector<WebString>& filenames) const
+{
+    ASSERT(!isNull());
+    filenames = m_private->filenames();
+}
+
+void WebDragData::setFilenames(const WebVector<WebString>& filenames)
+{
+    ensureMutable();
+    Vector<String> filenamesCopy;
+    filenamesCopy.append(filenames.data(), filenames.size());
+    m_private->setFilenames(filenamesCopy);
+}
+
+void WebDragData::appendToFilenames(const WebString& filename)
+{
+    ensureMutable();
+    Vector<String> filenames = m_private->filenames();
+    filenames.append(filename);
+    m_private->setFilenames(filenames);
+}
+
+WebString WebDragData::plainText() const
+{
+    ASSERT(!isNull());
+    bool ignoredSuccess;
+    return m_private->getData(mimeTypeTextPlain, ignoredSuccess);
+}
+
+void WebDragData::setPlainText(const WebString& plainText)
+{
+    ensureMutable();
+    m_private->setData(mimeTypeTextPlain, plainText);
+}
+
+WebString WebDragData::htmlText() const
+{
+    ASSERT(!isNull());
+    bool ignoredSuccess;
+    return m_private->getData(mimeTypeTextHTML, ignoredSuccess);
+}
+
+void WebDragData::setHTMLText(const WebString& htmlText)
+{
+    ensureMutable();
+    m_private->setData(mimeTypeTextHTML, htmlText);
+}
+
+WebURL WebDragData::htmlBaseURL() const
+{
+    ASSERT(!isNull());
+    return m_private->htmlBaseUrl();
+}
+
+void WebDragData::setHTMLBaseURL(const WebURL& htmlBaseURL)
+{
+    ensureMutable();
+    m_private->setHtmlBaseUrl(htmlBaseURL);
+}
+
+WebString WebDragData::fileContentFilename() const
+{
+    ASSERT(!isNull());
+    return m_private->fileContentFilename();
+}
+
+void WebDragData::setFileContentFilename(const WebString& filename)
+{
+    ensureMutable();
+    m_private->setFileContentFilename(filename);
+}
+
+WebData WebDragData::fileContent() const
+{
+    ASSERT(!isNull());
+    return WebData(m_private->fileContent());
+}
+
+void WebDragData::setFileContent(const WebData& fileContent)
+{
+    ensureMutable();
+    m_private->setFileContent(fileContent);
+}
+
+WebDragData::WebDragData(const WTF::PassRefPtr<WebCore::ChromiumDataObject>& data)
+    : m_private(static_cast<WebDragDataPrivate*>(data.releaseRef()))
+{
+}
+
+WebDragData& WebDragData::operator=(const WTF::PassRefPtr<WebCore::ChromiumDataObject>& data)
+{
+    assign(static_cast<WebDragDataPrivate*>(data.releaseRef()));
+    return *this;
+}
+
+WebDragData::operator WTF::PassRefPtr<WebCore::ChromiumDataObject>() const
+{
+    return PassRefPtr<ChromiumDataObject>(const_cast<WebDragDataPrivate*>(m_private));
+}
+
+void WebDragData::assign(WebDragDataPrivate* p)
+{
+    // p is already ref'd for us by the caller
+    if (m_private)
+        m_private->deref();
+    m_private = p;
+}
+
+void WebDragData::ensureMutable()
+{
+    ASSERT(!isNull());
+    ASSERT(m_private->hasOneRef());
+}
+
+} // namespace WebKit