components: Move PrefRegistrySyncable into user_prefs namespace.

chrome/browser/sync/invalidations/invalidator_storage.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.
 //
 // Wraps PrefService in an InvalidationStateTracker to allow SyncNotifiers
 // to use PrefService as persistence for invalidation state. It is not thread
 // safe, and lives on the UI thread.
 
 #ifndef CHROME_BROWSER_SYNC_INVALIDATIONS_INVALIDATOR_STORAGE_H_
 #define CHROME_BROWSER_SYNC_INVALIDATIONS_INVALIDATOR_STORAGE_H_
 
 #include "base/basictypes.h"
 #include "base/gtest_prod_util.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "sync/notifier/invalidation_state_tracker.h"
 
 class PrefService;
-class PrefRegistrySyncable;
 
 namespace base {
 class DictionaryValue;
 class ListValue;
 }
 
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
 namespace browser_sync {
 
 // TODO(tim): Bug 124137. We may want to move this outside of sync/ into a
 // browser/invalidations directory, or re-organize to have a browser
 // subdirectory that contains signin/ sync/ invalidations/ and other cloud
 // services.  For now this is still tied to sync while we refactor, so minimize
 // churn and keep it here.
 class InvalidatorStorage : public base::SupportsWeakPtr<InvalidatorStorage>,
                            public syncer::InvalidationStateTracker {
  public:
-  static void RegisterUserPrefs(PrefRegistrySyncable* registry);
+  static void RegisterUserPrefs(user_prefs::PrefRegistrySyncable* registry);
 
   // |pref_service| may be NULL (for unit tests), but in that case no setter
   // methods should be called. Does not own |pref_service|.
   explicit InvalidatorStorage(PrefService* pref_service);
   virtual ~InvalidatorStorage();
 
   // InvalidationStateTracker implementation.
   virtual syncer::InvalidationStateMap GetAllInvalidationStates() const
       OVERRIDE;
   virtual void SetMaxVersionAndPayload(const invalidation::ObjectId& id,
@@ skipping 50 matching lines @@
 
   // May be NULL.
   PrefService* const pref_service_;
 
   DISALLOW_COPY_AND_ASSIGN(InvalidatorStorage);
 };
 
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_INVALIDATIONS_INVALIDATOR_STORAGE_H_