Web SQL: Remove unnecessary abstraction.

Source/modules/webdatabase/DatabaseBackendBase.cpp

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  * 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.
@@ skipping 17 matching lines @@
  */
 
 #include "config.h"
 #include "modules/webdatabase/DatabaseBackendBase.h"
 
 #include "core/dom/ExceptionCode.h"
 #include "core/dom/ExecutionContext.h"
 #include "core/inspector/ConsoleMessage.h"
 #include "platform/Logging.h"
 #include "modules/webdatabase/DatabaseAuthorizer.h"
-#include "modules/webdatabase/DatabaseBase.h"
 #include "modules/webdatabase/DatabaseContext.h"
 #include "modules/webdatabase/DatabaseManager.h"
 #include "modules/webdatabase/DatabaseTracker.h"
 #include "modules/webdatabase/sqlite/SQLiteStatement.h"
 #include "modules/webdatabase/sqlite/SQLiteTransaction.h"
 #include "platform/weborigin/DatabaseIdentifier.h"
 #include "public/platform/Platform.h"
 #include "public/platform/WebDatabaseObserver.h"
 #include "wtf/HashMap.h"
 #include "wtf/HashSet.h"
@@ skipping 604 matching lines @@
 {
     executionContext()->addConsoleMessage(ConsoleMessage::create(StorageMessageSource, ErrorMessageLevel, message));
 }
 
 ExecutionContext* DatabaseBackendBase::executionContext() const
 {
     return databaseContext()->executionContext();
 }
 
 } // namespace blink