[Sync] Rename csync namespace to syncer

sync/engine/verify_updates_command.h

Index: sync/engine/verify_updates_command.h
diff --git a/sync/engine/verify_updates_command.h b/sync/engine/verify_updates_command.h
index b0bf68e5124a42f2419e804cfd92fad90c19b843..27b0b418b91860c2745dd1c011fb0060e9938ac2 100644
--- a/sync/engine/verify_updates_command.h
+++ b/sync/engine/verify_updates_command.h
@@ -17,7 +17,7 @@ namespace syncable {
 class WriteTransaction;
 }
 
-namespace csync {
+namespace syncer {
 
 // Verifies the response from a GetUpdates request. All invalid updates will be
 // noted in the SyncSession after this command is executed.
@@ -45,6 +45,6 @@ class VerifyUpdatesCommand : public ModelChangingSyncerCommand {
   DISALLOW_COPY_AND_ASSIGN(VerifyUpdatesCommand);
 };
 
-}  // namespace csync
+}  // namespace syncer
 
 #endif  // SYNC_ENGINE_VERIFY_UPDATES_COMMAND_H_