[Sync] Rename csync namespace to syncer

sync/sessions/sync_session.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/sessions/sync_session.h"
 
 #include <algorithm>
 #include <iterator>
 
 #include "base/logging.h"
 #include "sync/internal_api/public/syncable/model_type.h"
 #include "sync/syncable/directory.h"
 
-namespace csync {
+namespace syncer {
 namespace sessions {
 
 namespace {
 
 std::set<ModelSafeGroup> ComputeEnabledGroups(
     const ModelSafeRoutingInfo& routing_info,
     const std::vector<ModelSafeWorker*>& workers) {
   std::set<ModelSafeGroup> enabled_groups;
   // Project the list of enabled types (i.e., types in the routing
   // info) to a list of enabled groups.
@@ skipping 225 matching lines @@
   // We want to verify that, for all commands attempted, we successfully spoke
   // with the server. Therefore, we verify no errors and at least one SYNCER_OK.
   return reached_server && !HadErrors(state);
 }
 
 void SyncSession::SetFinished() {
   finished_ = true;
 }
 
 }  // namespace sessions
-}  // namespace csync
+}  // namespace syncer