[Sync] Rename csync namespace to syncer

sync/notifier/registration_manager.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.
 //
 // A class that manages the registration of types for server-issued
 // notifications.
 
 #ifndef SYNC_NOTIFIER_REGISTRATION_MANAGER_H_
 #define SYNC_NOTIFIER_REGISTRATION_MANAGER_H_
 #pragma once
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/threading/non_thread_safe.h"
 #include "base/time.h"
 #include "base/timer.h"
 // For invalidation::InvalidationListener::RegistrationState.
 #include "google/cacheinvalidation/include/invalidation-listener.h"
 #include "google/cacheinvalidation/include/types.h"
 #include "sync/notifier/invalidation_util.h"
 
-namespace csync {
+namespace syncer {
 
 using ::invalidation::InvalidationListener;
 
 // Manages the details of registering types for invalidation.
 // Implements exponential backoff for repeated registration attempts
 // to the invalidation client.
 //
 // TODO(akalin): Consolidate exponential backoff code.  Other
 // implementations include the syncer thread (both versions) and XMPP
 // retries.  The most sophisticated one is URLRequestThrottler; making
@@ skipping 140 matching lines @@
   // Returns true iff the given object ID is registered.
   bool IsIdRegistered(const invalidation::ObjectId& id) const;
 
   RegistrationStatusMap registration_statuses_;
   // Weak pointer.
   invalidation::InvalidationClient* invalidation_client_;
 
   DISALLOW_COPY_AND_ASSIGN(RegistrationManager);
 };
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_NOTIFIER_REGISTRATION_MANAGER_H_