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diff --git a/Source/WebCore/platform/chromium/ReadableDataObject.cpp b/Source/WebCore/platform/chromium/ReadableDataObject.cpp
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+++ b/Source/WebCore/platform/chromium/ReadableDataObject.cpp
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+/*
+ * Copyright (c) 2010 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 "ReadableDataObject.h"
+
+#include "ChromiumBridge.h"
+#include "ClipboardMimeTypes.h"
+#include "Pasteboard.h"
+#include "PasteboardPrivate.h"
+
+namespace WebCore {
+
+static PasteboardPrivate::ClipboardBuffer clipboardBuffer(Clipboard::ClipboardType clipboardType)
+{
+    return clipboardType == Clipboard::DragAndDrop ? PasteboardPrivate::DragBuffer : PasteboardPrivate::StandardBuffer;
+}
+
+PassRefPtr<ReadableDataObject> ReadableDataObject::create(Clipboard::ClipboardType clipboardType)
+{
+    return adoptRef(new ReadableDataObject(clipboardType));
+}
+
+ReadableDataObject::ReadableDataObject(Clipboard::ClipboardType clipboardType)
+    : m_clipboardType(clipboardType)
+    , m_containsFilenames(false)
+    , m_isTypeCacheInitialized(false)
+{
+}
+
+bool ReadableDataObject::hasData() const
+{
+    ensureTypeCacheInitialized();
+    return !m_types.isEmpty() || m_containsFilenames;
+}
+
+HashSet<String> ReadableDataObject::types() const
+{
+    ensureTypeCacheInitialized();
+    return m_types;
+}
+
+String ReadableDataObject::getData(const String& type, bool& succeeded) const
+{
+    String data;
+    String ignoredMetadata;
+    // Since the Chromium-side bridge isn't complete yet, we special case this
+    // for copy-and-paste, since that code path no longer uses
+    // ChromiumDataObjectLegacy.
+    if (m_clipboardType == Clipboard::CopyAndPaste) {
+        if (type == mimeTypeTextPlain) {
+            PasteboardPrivate::ClipboardBuffer buffer =
+                Pasteboard::generalPasteboard()->isSelectionMode() ?
+                PasteboardPrivate::SelectionBuffer :
+                PasteboardPrivate::StandardBuffer;
+            data = ChromiumBridge::clipboardReadPlainText(buffer);
+        } else if (type == mimeTypeTextHTML) {
+            PasteboardPrivate::ClipboardBuffer buffer =
+                Pasteboard::generalPasteboard()->isSelectionMode() ?
+                PasteboardPrivate::SelectionBuffer :
+                PasteboardPrivate::StandardBuffer;
+            KURL ignoredSourceURL;
+            ChromiumBridge::clipboardReadHTML(buffer, &data, &ignoredSourceURL);
+        }
+        succeeded = !data.isEmpty();
+        return data;
+    }
+    succeeded = ChromiumBridge::clipboardReadData(
+        clipboardBuffer(m_clipboardType), type, data, ignoredMetadata);
+    return data;
+}
+
+String ReadableDataObject::urlTitle() const
+{
+    String ignoredData;
+    String urlTitle;
+    ChromiumBridge::clipboardReadData(
+        clipboardBuffer(m_clipboardType), mimeTypeTextURIList, ignoredData, urlTitle);
+    return urlTitle;
+}
+
+KURL ReadableDataObject::htmlBaseUrl() const
+{
+    String ignoredData;
+    String htmlBaseUrl;
+    ChromiumBridge::clipboardReadData(
+        clipboardBuffer(m_clipboardType), mimeTypeTextHTML, ignoredData, htmlBaseUrl);
+    return KURL(ParsedURLString, htmlBaseUrl);
+}
+
+bool ReadableDataObject::containsFilenames() const
+{
+    ensureTypeCacheInitialized();
+    return m_containsFilenames;
+}
+
+Vector<String> ReadableDataObject::filenames() const
+{
+    return ChromiumBridge::clipboardReadFilenames(clipboardBuffer(m_clipboardType));
+}
+
+void ReadableDataObject::ensureTypeCacheInitialized() const
+{
+    if (m_isTypeCacheInitialized)
+        return;
+
+    m_types = ChromiumBridge::clipboardReadAvailableTypes(
+        clipboardBuffer(m_clipboardType), &m_containsFilenames);
+    m_isTypeCacheInitialized = true;
+}
+
+} // namespace WebCore