Move Pickle to base namespace.

ui/base/clipboard/scoped_clipboard_writer.h

 // Copyright (c) 2012 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 the clipboard,
 // avoiding any potential race condition with other processes that are also
 // writing to the system clipboard.
 
 #ifndef UI_BASE_CLIPBOARD_SCOPED_CLIPBOARD_WRITER_H_
 #define UI_BASE_CLIPBOARD_SCOPED_CLIPBOARD_WRITER_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/clipboard/clipboard.h"
 #include "ui/base/ui_base_export.h"
 
+namespace base {
 class Pickle;
+}
 
 namespace ui {
 
 // This class is a wrapper for |Clipboard| that handles packing data
 // into a Clipboard::ObjectMap.
 class UI_BASE_EXPORT ScopedClipboardWriter {
  public:
   // Create an instance that is a simple wrapper around the clipboard of the
   // given type.
   explicit ScopedClipboardWriter(ClipboardType type);
@@ skipping 20 matching lines @@
 
   // Adds an html hyperlink (<a href>) to the clipboard. |anchor_text| and
   // |url| will be escaped as needed.
   void WriteHyperlink(const base::string16& anchor_text,
                       const std::string& url);
 
   // Used by WebKit to determine whether WebKit wrote the clipboard last
   void WriteWebSmartPaste();
 
   // Adds arbitrary pickled data to clipboard.
-  void WritePickledData(const Pickle& pickle,
+  void WritePickledData(const base::Pickle& pickle,
                         const Clipboard::FormatType& format);
 
   void WriteImage(const SkBitmap& bitmap);
 
   // Removes all objects that would be written to the clipboard.
   void Reset();
 
  private:
   // Converts |text| to UTF-8 and adds it to the clipboard.  If it's a URL, we
   // also notify the clipboard of that fact.
@@ skipping 10 matching lines @@
   // Clipboard::DidWriteURL().
   std::string url_text_;
 
   DISALLOW_COPY_AND_ASSIGN(ScopedClipboardWriter);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_CLIPBOARD_SCOPED_CLIPBOARD_WRITER_H_