Custom validation message to take into account text direction

public/web/WebViewClient.h

 /*
  * Copyright (C) 2009 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 145 matching lines @@
     // Ask users to choose date/time for the specified parameters. When a user
     // chooses a value, an implementation of this function should call
     // WebDateTimeChooserCompletion::didChooseValue or didCancelChooser. If the
     // implementation opened date/time chooser UI successfully, it should return
     // true. This function is used only if ExternalDateTimeChooser is used.
     virtual bool openDateTimeChooser(const WebDateTimeChooserParams&, WebDateTimeChooserCompletion*) { return false; }
 
     // Show a notification popup for the specified form vaidation messages
     // besides the anchor rectangle. An implementation of this function should
     // not hide the popup until hideValidationMessage call.
+    virtual void showValidationMessage(const WebRect& anchorInRootView, const WebString& mainText, WebTextDirection mainTextDir, const WebString& supplementalText, WebTextDirection supplementalTextDir) { }
     virtual void showValidationMessage(const WebRect& anchorInRootView, const WebString& mainText, const WebString& supplementalText, WebTextDirection hint) { }
 
     // Hide notifation popup for form validation messages.
     virtual void hideValidationMessage() { }
 
     // Move the existing notifation popup to the new anchor position.
     virtual void moveValidationMessage(const WebRect& anchorInRootView) { }
 
 
     // UI ------------------------------------------------------------------
@@ skipping 132 matching lines @@
     // Informs the browser that the draggable regions have been updated.
     virtual void draggableRegionsChanged() { }
 
 protected:
     ~WebViewClient() { }
 };
 
 } // namespace blink
 
 #endif