components: Move PrefRegistrySyncable into user_prefs namespace.

chrome/browser/ui/tabs/pinned_tab_codec.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 CHROME_BROWSER_UI_TABS_PINNED_TAB_CODEC_H_
 #define CHROME_BROWSER_UI_TABS_PINNED_TAB_CODEC_H_
 
 #include <vector>
 
 #include "chrome/browser/ui/startup/startup_tab.h"
 #include "googleurl/src/gurl.h"
 
+class Profile;
+
 namespace base {
 class Value;
 }
 
+namespace user_prefs {
 class PrefRegistrySyncable;
-class Profile;
+}
 
 // PinnedTabCodec is used to read and write the set of pinned tabs to
 // preferences. When Chrome exits the sets of pinned tabs are written to prefs.
 // On startup if the user has not chosen to restore the last session the set of
 // pinned tabs is opened.
 //
 // The entries are stored in preferences as a list of dictionaries, with each
 // dictionary describing the entry.
 class PinnedTabCodec {
  public:
   // Registers the preference used by this class.
-  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
+  static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // Resets the preferences state.
   static void WritePinnedTabs(Profile* profile);
 
   // Sets the preferences state from the specified tab list.
   static void WritePinnedTabs(Profile* profile, const StartupTabs& tabs);
 
   // Reads and returns the set of pinned tabs to restore from preferences.
   static StartupTabs ReadPinnedTabs(Profile* profile);
   static StartupTabs ReadPinnedTabs(const base::Value* value);
 
  private:
   PinnedTabCodec();
   ~PinnedTabCodec();
 
   DISALLOW_COPY_AND_ASSIGN(PinnedTabCodec);
 };
 
 #endif  // CHROME_BROWSER_UI_TABS_PINNED_TAB_CODEC_H_