Refactor bookmark clipboard code to be cross platform.

base/scoped_clipboard_writer.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.
 
 // This file declares the ScopedClipboardWriter class, a wrapper around
 // the Clipboard class which simplifies writing data to the system clipboard.
 // Upon deletion the class atomically writes all data to |clipboard_|,
 // avoiding any potential race condition with other processes that are also
 // writing to the system clipboard.
 #ifndef BASE_SCOPED_CLIPBOARD_WRITER_H_
 #define BASE_SCOPED_CLIPBOARD_WRITER_H_
 
 #include <string>
 #include <vector>
 
 #include "base/clipboard.h"
 #include "base/file_path.h"
 #include "base/string16.h"
 
+class Pickle;
+
 // This class is a wrapper for |Clipboard| that handles packing data
 // into a Clipboard::ObjectMap.
 // NB: You should probably NOT be using this class if you include
 // webkit_glue.h. Use ScopedClipboardWriterGlue instead.
 class ScopedClipboardWriter {
  public:
   // Create an instance that is a simple wrapper around clipboard.
   ScopedClipboardWriter(Clipboard* clipboard);
 
   ~ScopedClipboardWriter();
@@ skipping 18 matching lines @@
   void WriteFile(const FilePath& file);
   void WriteFiles(const std::vector<FilePath>& files);
 
   // Used by WebKit to determine whether WebKit wrote the clipboard last
   void WriteWebSmartPaste();
 
   // Adds a bitmap to the clipboard
   // Pixel format is assumed to be 32-bit BI_RGB.
   void WriteBitmapFromPixels(const void* pixels, const gfx::Size& size);
 
+  // Adds arbitrary data to clipboard.
+  void WritePickledData(const Pickle& pickle, Clipboard::FormatType format);
+
  protected:
   // We accumulate the data passed to the various targets in the |objects_|
   // vector, and pass it to Clipboard::WriteObjects() during object destruction.
   Clipboard::ObjectMap objects_;
   Clipboard* clipboard_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(ScopedClipboardWriter);
 };
 
 #endif  // BASE_SCOPED_CLIPBOARD_WRITER_H_