[Sync] Rename csync namespace to syncer

sync/test/sessions/test_scoped_session_event_listener.h

Index: sync/test/sessions/test_scoped_session_event_listener.h
diff --git a/sync/test/sessions/test_scoped_session_event_listener.h b/sync/test/sessions/test_scoped_session_event_listener.h
index 17fc160952e4e3b38382c0c132b76465dfac83c6..ef46d7b9946fd2810b62aba3f6a19063eb989414 100644
--- a/sync/test/sessions/test_scoped_session_event_listener.h
+++ b/sync/test/sessions/test_scoped_session_event_listener.h
@@ -8,7 +8,7 @@
 
 #include "sync/sessions/sync_session_context.h"
 
-namespace csync {
+namespace syncer {
 namespace sessions {
 
 // Installs a SyncEventListener to a given session context for the lifetime of
@@ -31,6 +31,6 @@ class TestScopedSessionEventListener {
 };
 
 }  // namespace sessions
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_TEST_SESSIONS_TEST_SCOPED_SESSION_EVENT_LISTENER_H_