[Sync] Rename csync namespace to syncer

sync/sessions/sync_session.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 representing an attempt to synchronize the local syncable data
 // store with a sync server. A SyncSession instance is passed as a stateful
 // bundle to and from various SyncerCommands with the goal of converging the
 // client view of data with that of the server. The commands twiddle with
 // session status in response to events and hiccups along the way, set and
 // query session progress with regards to conflict resolution and applying
@@ skipping 19 matching lines @@
 #include "sync/sessions/ordered_commit_set.h"
 #include "sync/sessions/session_state.h"
 #include "sync/sessions/status_controller.h"
 #include "sync/sessions/sync_session_context.h"
 #include "sync/util/extensions_activity_monitor.h"
 
 namespace syncable {
 class WriteTransaction;
 }
 
-namespace csync {
+namespace syncer {
 class ModelSafeWorker;
 
 namespace sessions {
 
 class SyncSession {
  public:
   // The Delegate services events that occur during the session requiring an
   // explicit (and session-global) action, as opposed to events that are simply
   // recorded in per-session state.
   class Delegate {
@@ skipping 189 matching lines @@
     session_->write_transaction_ = trans;
   }
   ~ScopedSetSessionWriteTransaction() { session_->write_transaction_ = NULL; }
 
  private:
   SyncSession* session_;
   DISALLOW_COPY_AND_ASSIGN(ScopedSetSessionWriteTransaction);
 };
 
 }  // namespace sessions
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_SESSIONS_SYNC_SESSION_H_