Move Pickle to base namespace.

chrome/browser/ui/app_list/fast_show_pickler.h

 // Copyright 2013 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_UI_APP_LIST_FAST_SHOW_PICKLER_H_
 #define CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/pickle.h"
 #include "ui/app_list/app_list_model.h"
 
 // Functions for pickling/unpickling AppListModel for fast show. Fast show is
 // where the app list is put on the screen using data retrieved from a cache
 // before the extension system has loaded.
 class FastShowPickler {
  public:
   // The version that this pickler understands.
   static const int kVersion;
 
   // Pickles a subset of the data in |model| that is useful for doing a fast
   // show of the app list.
-  static scoped_ptr<Pickle> PickleAppListModelForFastShow(
+  static scoped_ptr<base::Pickle> PickleAppListModelForFastShow(
       app_list::AppListModel* model);
 
   // Given a Pickle created by PickleAppListModelForFastShow(), this creates an
   // AppListModel that represents it.
   static scoped_ptr<app_list::AppListModel> UnpickleAppListModelForFastShow(
-      Pickle* pickle);
+      base::Pickle* pickle);
 
   // Copies parts that are needed to show the app list quickly on startup from
   // |src| to |dest|.
   static void CopyOver(
       app_list::AppListModel* src, app_list::AppListModel* dest);
 
  private:
   // Private static methods allow friend access to AppListItem methods.
   static scoped_ptr<app_list::AppListItem> UnpickleAppListItem(
-      PickleIterator* it);
-  static bool PickleAppListItem(Pickle* pickle, app_list::AppListItem* item);
+      base::PickleIterator* it);
+  static bool PickleAppListItem(base::Pickle* pickle,
+                                app_list::AppListItem* item);
   static void CopyOverItem(app_list::AppListItem* src_item,
                            app_list::AppListItem* dest_item);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_FAST_SHOW_PICKLER_H_