Use DCHECK_IS_ON consistently in DatabaseTask.

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

 /*
  * Copyright (C) 2007, 2008, 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
@@ skipping 33 matching lines @@
 namespace blink {
 
 class DatabaseTask {
     WTF_MAKE_NONCOPYABLE(DatabaseTask); USING_FAST_MALLOC(DatabaseTask);
 public:
     virtual ~DatabaseTask();
 
     void run();
 
     Database* database() const { return m_database.get(); }
-#if ENABLE(ASSERT)
-    bool hasSynchronizer() const { return m_synchronizer; }
-#endif
 
 protected:
     DatabaseTask(Database*, TaskSynchronizer*);
 
 private:
     virtual void doPerformTask() = 0;
     virtual void taskCancelled() { }
 
     CrossThreadPersistent<Database> m_database;
     TaskSynchronizer* m_synchronizer;
@@ skipping 79 matching lines @@
 #if DCHECK_IS_ON()
     const char* debugTaskName() const override;
 #endif
 
     Vector<String>& m_tableNames;
 };
 
 } // namespace blink
 
 #endif // DatabaseTask_h