Revert of [Oilpan] Prepare full definition of classes before using Member

third_party/WebKit/Source/modules/webdatabase/Database.cpp

 /*
  * Copyright (C) 2013 Apple 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:
  * 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 749 matching lines @@
             createDatabaseIdentifierFromSecurityOrigin(securityOrigin()),
             stringIdentifier(), sqliteErrorCode);
     }
 }
 
 void Database::logErrorMessage(const String& message)
 {
     executionContext()->addConsoleMessage(ConsoleMessage::create(StorageMessageSource, ErrorMessageLevel, message));
 }
 
-DatabaseContext* Database::databaseContext() const
-{
-    return m_databaseContext;
-}
-
 ExecutionContext* Database::executionContext() const
 {
     return databaseContext()->executionContext();
 }
 
 void Database::closeImmediately()
 {
     ASSERT(executionContext()->isContextThread());
     if (databaseContext()->databaseThreadAvailable() && opened()) {
         logErrorMessage("forcibly closing database");
@@ skipping 116 matching lines @@
 SecurityOrigin* Database::securityOrigin() const
 {
     if (executionContext()->isContextThread())
         return m_contextThreadSecurityOrigin.get();
     if (databaseContext()->databaseThread()->isDatabaseThread())
         return m_databaseThreadSecurityOrigin.get();
     return 0;
 }
 
 } // namespace blink