Clean up forward declarations in Source/modules

Source/modules/webdatabase/sqlite/SQLiteDatabase.h

 /*
  * Copyright (C) 2006, 2007, 2008 Apple Inc. All rights reserved.
  * Copyright (C) 2007 Justin Haygood (jhaygood@reaktix.com)
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
@@ skipping 24 matching lines @@
 
 #if COMPILER(MSVC)
 #pragma warning(disable: 4800)
 #endif
 
 struct sqlite3;
 
 namespace blink {
 
 class DatabaseAuthorizer;
-class SQLiteStatement;
 class SQLiteTransaction;
 
 extern const int SQLResultDone;
 extern const int SQLResultOk;
 extern const int SQLResultRow;
 extern const int SQLResultFull;
 extern const int SQLResultInterrupt;
 extern const int SQLResultConstraint;
 
 class SQLiteDatabase {
@@ skipping 81 matching lines @@
 
     int m_openError;
     CString m_openErrorMessage;
 
     int m_lastChangesCount;
 };
 
 } // namespace blink
 
 #endif