Move the bits of Prefs where production code has only trivially easy

chrome/browser/prefs/pref_notifier_impl.h

 // Copyright (c) 2011 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_PREFS_PREF_NOTIFIER_IMPL_H_
 #define CHROME_BROWSER_PREFS_PREF_NOTIFIER_IMPL_H_
 
 #include <string>
 
 #include "base/hash_tables.h"
 #include "base/observer_list.h"
+#include "base/prefs/pref_notifier.h"
 #include "base/threading/non_thread_safe.h"
-#include "chrome/browser/prefs/pref_notifier.h"
 
 class PrefService;
 
 namespace content {
 class NotificationObserver;
 }
 
 // The PrefNotifier implementation used by the PrefService.
 class PrefNotifierImpl : public PrefNotifier,
                          public base::NonThreadSafe {
@@ skipping 30 matching lines @@
 
   // Weak reference; the notifier is owned by the PrefService.
   PrefService* pref_service_;
 
   PrefObserverMap pref_observers_;
 
   DISALLOW_COPY_AND_ASSIGN(PrefNotifierImpl);
 };
 
 #endif  // CHROME_BROWSER_PREFS_PREF_NOTIFIER_IMPL_H_