Bookmark Manager Drag and Drop backend....

chrome/browser/bookmarks/bookmark_drag_data.h

 // Copyright (c) 2010 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.
 
 #ifndef CHROME_BROWSER_BOOKMARKS_BOOKMARK_DRAG_DATA_H_
 #define CHROME_BROWSER_BOOKMARKS_BOOKMARK_DRAG_DATA_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 106 matching lines @@
 
   // Do we contain valid data?
   bool is_valid() const { return !elements.empty(); }
 
   // Returns true if there is a single url.
   bool has_single_url() const { return is_valid() && elements[0].is_url; }
 
   // Number of elements.
   size_t size() const { return elements.size(); }
 
+  // Clears the data.
+  void Clear();
+
   // Returns true if this data is from the specified profile.
   bool IsFromProfile(Profile* profile) const;
 
   // The actual elements written to the clipboard.
   std::vector<Element> elements;
 
   // The MIME type for the clipboard format for BookmarkDragData.
   static const char* kClipboardFormatString;
 
   static bool ClipboardContainsBookmarks();
 
  private:
   // Path of the profile we originated from.
   FilePath::StringType profile_path_;
 };
 
 #endif  // CHROME_BROWSER_BOOKMARKS_BOOKMARK_DRAG_DATA_H_