Replace ENABLE(ASSERT) with DCHECK_IS_ON().

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

 /*
  * 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 120 matching lines @@
   ASSERT(database);
   ASSERT(!m_openDatabaseSet.contains(database));
   MutexLocker lock(m_terminationRequestedMutex);
   if (!m_terminationRequested)
     m_openDatabaseSet.add(database);
 }
 
 void DatabaseThread::recordDatabaseClosed(Database* database) {
   ASSERT(isDatabaseThread());
   ASSERT(database);
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   {
     MutexLocker lock(m_terminationRequestedMutex);
     ASSERT(m_terminationRequested || m_openDatabaseSet.contains(database));
   }
 #endif
   m_openDatabaseSet.remove(database);
 }
 
 bool DatabaseThread::isDatabaseOpen(Database* database) {
   ASSERT(isDatabaseThread());
   ASSERT(database);
   MutexLocker lock(m_terminationRequestedMutex);
   return !m_terminationRequested && m_openDatabaseSet.contains(database);
 }
 
 bool DatabaseThread::isDatabaseThread() const {
   // This function is called only from the main thread or the database
   // thread. If we are not in the main thread, we are in the database thread.
   return !isMainThread();
 }
 
 void DatabaseThread::scheduleTask(std::unique_ptr<DatabaseTask> task) {
   ASSERT(m_thread);
-#if ENABLE(ASSERT)
+#if DCHECK_IS_ON()
   {
     MutexLocker lock(m_terminationRequestedMutex);
     ASSERT(!m_terminationRequested);
   }
 #endif
   // WebThread takes ownership of the task.
   m_thread->postTask(BLINK_FROM_HERE,
                      crossThreadBind(&DatabaseTask::run, std::move(task)));
 }
 
 }  // namespace blink