Migrate WTF::HashSet::add() to ::insert() [part 1 of N]

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 114 matching lines @@
   if (m_cleanupSync)  // Someone wanted to know when we were done cleaning up.
     m_cleanupSync->signal();
 }
 
 void DatabaseThread::recordDatabaseOpen(Database* database) {
   ASSERT(isDatabaseThread());
   ASSERT(database);
   ASSERT(!m_openDatabaseSet.contains(database));
   MutexLocker lock(m_terminationRequestedMutex);
   if (!m_terminationRequested)
-    m_openDatabaseSet.add(database);
+    m_openDatabaseSet.insert(database);
 }
 
 void DatabaseThread::recordDatabaseClosed(Database* database) {
   ASSERT(isDatabaseThread());
   ASSERT(database);
 #if DCHECK_IS_ON()
   {
     MutexLocker lock(m_terminationRequestedMutex);
     ASSERT(m_terminationRequested || m_openDatabaseSet.contains(database));
   }
@@ skipping 21 matching lines @@
     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