Support dragging a virtual file out of the browser.

webkit/glue/webdropdata.h

 // 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_
@@ skipping 20 matching lines @@
 
   // 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.
+  GURL download_url;
+
   // 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).
@@ skipping 10 matching lines @@
   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_