Remove modules/webdatabase dependency from core.

Source/modules/webdatabase/DatabaseManager.cpp

 /*
  * Copyright (C) 2012 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 258 matching lines @@
 String DatabaseManager::fullPathForDatabase(SecurityOrigin* origin, const String& name, bool createIfDoesNotExist)
 {
     return m_server->fullPathForDatabase(origin, name, createIfDoesNotExist);
 }
 
 void DatabaseManager::closeDatabasesImmediately(const String& originIdentifier, const String& name)
 {
     m_server->closeDatabasesImmediately(originIdentifier, name);
 }
 
-void DatabaseManager::interruptAllDatabasesForContext(ExecutionContext* context)
+void DatabaseManager::interruptAllDatabasesForContext(DatabaseContext* databaseContext)
 {
-    RefPtr<DatabaseContext> databaseContext = existingDatabaseContextFor(context);
-    if (databaseContext)
-        m_server->interruptAllDatabasesForContext(databaseContext->backend().get());
+    m_server->interruptAllDatabasesForContext(databaseContext->backend().get());
 }
 
 void DatabaseManager::logErrorMessage(ExecutionContext* context, const String& message)
 {
     context->addConsoleMessage(StorageMessageSource, ErrorMessageLevel, message);
 }
 
 } // namespace WebCore