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diff --git a/webkit/glue/webdropdata.h b/webkit/glue/webdropdata.h
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+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+// A struct for managing data being dropped on a webview.  This represents a
+// union of all the types of data that can be dropped in a platform neutral
+// way.
+
+#ifndef WEBKIT_GLUE_WEBDROPDATA_H_
+#define WEBKIT_GLUE_WEBDROPDATA_H_
+
+#include <string>
+#include <vector>
+
+#include "base/string16.h"
+#include "googleurl/src/gurl.h"
+
+struct IDataObject;
+
+namespace WebKit {
+class WebDragData;
+}
+
+struct WebDropData {
+  // Construct with a given drag identity.  Note: identity is an int32 because
+  // it is passed over the renderer NPAPI interface to gears.
+  explicit WebDropData(int32 drag_identity) : identity(drag_identity) {}
+
+  // Construct from a WebDragData object.
+  explicit WebDropData(const WebKit::WebDragData&);
+
+  // For default constructions, use drag |identity| 0.
+  WebDropData() : identity(0) {}
+
+  int32 identity;
+
+  // User is dragging a link into the webview.
+  GURL url;
+  string16 url_title;  // The title associated with |url|.
+
+  // User is dragging a link out-of the webview.
+  string16 download_metadata;
+
+  // File extension for dragging images from a webview to the desktop.
+  string16 file_extension;
+
+  // User is dropping one or more files on the webview.
+  std::vector<string16> filenames;
+
+  // User is dragging plain text into the webview.
+  string16 plain_text;
+
+  // User is dragging text/html into the webview (e.g., out of Firefox).
+  // |html_base_url| is the URL that the html fragment is taken from (used to
+  // resolve relative links).  It's ok for |html_base_url| to be empty.
+  string16 text_html;
+  GURL html_base_url;
+
+  // User is dragging data from the webview (e.g., an image).
+  string16 file_description_filename;
+  std::string file_contents;
+
+  // Convert to a WebDragData object.
+  WebKit::WebDragData ToDragData() const;
+
+  // Helper method for converting Window's specific IDataObject to a WebDropData
+  // object.  TODO(tc): Move this to the browser side since it's Windows
+  // specific and no longer used in webkit.
+  static void PopulateWebDropData(IDataObject* data_object,
+                                  WebDropData* drop_data);
+};
+
+#endif  // WEBKIT_GLUE_WEBDROPDATA_H_