Remove Apple's unused implementation of private browsing from WebCore

Source/modules/webdatabase/DatabaseContext.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * Copyright (C) 2011 Google, 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 186 matching lines @@
         m_hasRequestedTermination = true;
         return true;
     }
     return false;
 }
 
 bool DatabaseContext::allowDatabaseAccess() const
 {
     if (m_scriptExecutionContext->isDocument()) {
         Document* document = toDocument(m_scriptExecutionContext);
-        if (!document->page() || (document->page()->settings()->privateBrowsingEnabled() && !SchemeRegistry::allowsDatabaseAccessInPrivateBrowsing(document->securityOrigin()->protocol())))
-            return false;
-        return true;
+        return document->page();
     }
     ASSERT(m_scriptExecutionContext->isWorkerContext());
     // allowDatabaseAccess is not yet implemented for workers.
     return true;
 }
 
 void DatabaseContext::databaseExceededQuota(const String& name, DatabaseDetails details)
 {
     if (m_scriptExecutionContext->isDocument()) {
         Document* document = toDocument(m_scriptExecutionContext);
         if (Page* page = document->page())
             page->chrome()->client()->exceededDatabaseQuota(document->frame(), name, details);
         return;
     }
     ASSERT(m_scriptExecutionContext->isWorkerContext());
 }
 
 } // namespace WebCore