Remove Apple's unused implementation of private browsing from WebCore

Source/WebCore/platform/SchemeRegistry.h

 /*
  * Copyright (C) 2010 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
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 54 matching lines @@
     // Such schemes should delegate to SecurityOrigin::canRequest for any URL
     // passed to SecurityOrigin::canDisplay.
     static bool canDisplayOnlyIfCanRequest(const String& scheme);
     static void registerAsCanDisplayOnlyIfCanRequest(const String& scheme);
 
     // Schemes against which javascript: URLs should not be allowed to run (stop
     // bookmarklets from running on sensitive pages). 
     static void registerURLSchemeAsNotAllowingJavascriptURLs(const String& scheme);
     static bool shouldTreatURLSchemeAsNotAllowingJavascriptURLs(const String& scheme);
 
-    // Let some schemes opt-out of Private Browsing's default behavior of prohibiting read/write
-    // access to Local Storage and Databases.
-    static void registerURLSchemeAsAllowingLocalStorageAccessInPrivateBrowsing(const String& scheme);
-    static bool allowsLocalStorageAccessInPrivateBrowsing(const String& scheme);
-    static void registerURLSchemeAsAllowingDatabaseAccessInPrivateBrowsing(const String& scheme);
-    static bool allowsDatabaseAccessInPrivateBrowsing(const String& scheme);
-
     // Allow non-HTTP schemes to be registered to allow CORS requests.
     static void registerURLSchemeAsCORSEnabled(const String& scheme);
     static bool shouldTreatURLSchemeAsCORSEnabled(const String& scheme);
 
     // Allow resources from some schemes to load on a page, regardless of its
     // Content Security Policy.
     static void registerURLSchemeAsBypassingContentSecurityPolicy(const String& scheme);
     static void removeURLSchemeRegisteredAsBypassingContentSecurityPolicy(const String& scheme);
     static bool schemeShouldBypassContentSecurityPolicy(const String& scheme);
 };
 
 } // namespace WebCore
 
 #endif // SchemeRegistry_h