Remove code related to title directionality, we never used it

Source/core/loader/EmptyClients.h

 /*
  * Copyright (C) 2006 Eric Seidel (eric@webkit.org)
  * Copyright (C) 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
  * Copyright (C) 2012 Samsung Electronics. 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
@@ skipping 180 matching lines @@
 
     virtual void dispatchWillSendRequest(DocumentLoader*, unsigned long, ResourceRequest&, const ResourceResponse&) OVERRIDE { }
     virtual void dispatchDidReceiveResponse(DocumentLoader*, unsigned long, const ResourceResponse&) OVERRIDE { }
     virtual void dispatchDidFinishLoading(DocumentLoader*, unsigned long) OVERRIDE { }
     virtual void dispatchDidLoadResourceFromMemoryCache(DocumentLoader*, const ResourceRequest&, const ResourceResponse&, int) OVERRIDE { }
 
     virtual void dispatchDidHandleOnloadEvents() OVERRIDE { }
     virtual void dispatchDidReceiveServerRedirectForProvisionalLoad() OVERRIDE { }
     virtual void dispatchWillClose() OVERRIDE { }
     virtual void dispatchDidStartProvisionalLoad() OVERRIDE { }
-    virtual void dispatchDidReceiveTitle(const StringWithDirection&) OVERRIDE { }
+    virtual void dispatchDidReceiveTitle(const String&) OVERRIDE { }
     virtual void dispatchDidChangeIcons(IconType) OVERRIDE { }
     virtual void dispatchDidCommitLoad() OVERRIDE { }
     virtual void dispatchDidFailProvisionalLoad(const ResourceError&) OVERRIDE { }
     virtual void dispatchDidFailLoad(const ResourceError&) OVERRIDE { }
     virtual void dispatchDidFinishDocumentLoad() OVERRIDE { }
     virtual void dispatchDidFinishLoad() OVERRIDE { }
     virtual void dispatchDidLayout(LayoutMilestones) OVERRIDE { }
 
     virtual NavigationPolicy decidePolicyForNavigation(const ResourceRequest&, DocumentLoader*, NavigationPolicy) OVERRIDE;
 
@@ skipping 151 matching lines @@
     virtual void didAddItem() OVERRIDE { }
     virtual int backListCount() OVERRIDE { return 0; }
     virtual int forwardListCount() OVERRIDE { return 0; }
 };
 
 void fillWithEmptyClients(Page::PageClients&);
 
 }
 
 #endif // EmptyClients_h