Add more missing closing namespace comments.

third_party/WebKit/Source/modules/webdatabase/SQLTransactionClient.h

 /*
  * Copyright (C) 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 30 matching lines @@
 // A client to the SQLTransaction class. Allows SQLTransaction to notify interested
 // parties that certain things have happened in a transaction.
 class SQLTransactionClient {
     WTF_MAKE_NONCOPYABLE(SQLTransactionClient); USING_FAST_MALLOC(SQLTransactionClient);
 public:
     SQLTransactionClient() { }
     void didCommitWriteTransaction(Database*);
     bool didExceedQuota(Database*);
 };
 
-}
+} // namespace blink
 
 #endif // SQLTransactionClient_h