Move PrefMember and PrefChangeRegistrar to api directory.

chrome/browser/chromeos/preferences.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_CHROMEOS_PREFERENCES_H_
 #define CHROME_BROWSER_CHROMEOS_PREFERENCES_H_
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
+#include "chrome/browser/api/prefs/pref_member.h"
 #include "chrome/browser/chromeos/language_preferences.h"
-#include "chrome/browser/prefs/pref_member.h"
 #include "content/public/browser/notification_observer.h"
 
 class PrefService;
 
 namespace chromeos {
 namespace input_method {
 class InputMethodManager;
 }  // namespace input_method
 
 // The Preferences class handles Chrome OS preferences. When the class
@@ skipping 124 matching lines @@
   IntegerPrefMember secondary_display_offset_;
 
   BooleanPrefMember enable_drm_;
 
   DISALLOW_COPY_AND_ASSIGN(Preferences);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_PREFERENCES_H_