[Sync] Rename csync namespace to syncer

sync/util/cryptographer.cc

 // 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.
 
 #include "sync/util/cryptographer.h"
 
 #include <algorithm>
 
 #include "base/base64.h"
 #include "base/logging.h"
 #include "sync/util/encryptor.h"
 
-namespace csync {
+namespace syncer {
 
 const char kNigoriTag[] = "google_chrome_nigori";
 
 // We name a particular Nigori instance (ie. a triplet consisting of a hostname,
 // a username, and a password) by calling Permute on this string. Since the
 // output of Permute is always the same for a given triplet, clients will always
 // assign the same name to a particular triplet.
 const char kNigoriKeyName[] = "nigori-key";
 
 Cryptographer::Observer::~Observer() {}
@@ skipping 419 matching lines @@
                                     key.encryption_key(),
                                     key.mac_key())) {
         NOTREACHED();
         continue;
       }
       nigoris_[key.name()] = make_linked_ptr(new_nigori.release());
     }
   }
 }
 
-}  // namespace csync
+}  // namespace syncer