Move Pickle to base namespace.

ui/base/dragdrop/os_exchange_data_provider_win.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.
 
 #ifndef UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_WIN_H_
 #define UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_WIN_H_
 
 #include <objidl.h>
 #include <shlobj.h>
 #include <string>
@@ skipping 134 matching lines @@
 
   // OSExchangeData::Provider methods.
   Provider* Clone() const override;
   void MarkOriginatedFromRenderer() override;
   bool DidOriginateFromRenderer() const override;
   void SetString(const base::string16& data) override;
   void SetURL(const GURL& url, const base::string16& title) override;
   void SetFilename(const base::FilePath& path) override;
   void SetFilenames(const std::vector<FileInfo>& filenames) override;
   void SetPickledData(const OSExchangeData::CustomFormat& format,
-                      const Pickle& data) override;
+                      const base::Pickle& data) override;
   void SetFileContents(const base::FilePath& filename,
                        const std::string& file_contents) override;
   void SetHtml(const base::string16& html, const GURL& base_url) override;
 
   bool GetString(base::string16* data) const override;
   bool GetURLAndTitle(OSExchangeData::FilenameToURLPolicy policy,
                       GURL* url,
                       base::string16* title) const override;
   bool GetFilename(base::FilePath* path) const override;
   bool GetFilenames(std::vector<FileInfo>* filenames) const override;
   bool GetPickledData(const OSExchangeData::CustomFormat& format,
-                      Pickle* data) const override;
+                      base::Pickle* data) const override;
   bool GetFileContents(base::FilePath* filename,
                        std::string* file_contents) const override;
   bool GetHtml(base::string16* html, GURL* base_url) const override;
   bool HasString() const override;
   bool HasURL(OSExchangeData::FilenameToURLPolicy policy) const override;
   bool HasFile() const override;
   bool HasFileContents() const override;
   bool HasHtml() const override;
   bool HasCustomFormat(
       const OSExchangeData::CustomFormat& format) const override;
@@ skipping 11 matching lines @@
   // Drag image and offset data. Only used for Ash.
   gfx::ImageSkia drag_image_;
   gfx::Vector2d drag_image_offset_;
 
   DISALLOW_COPY_AND_ASSIGN(OSExchangeDataProviderWin);
 };
 
 }  // namespace ui
 
 #endif  // UI_BASE_DRAGDROP_OS_EXCHANGE_DATA_PROVIDER_WIN_H_