Custom validation message to take into account text direction

Source/core/page/ValidationMessageClient.h

 /*
  * Copyright (C) 2012 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
  *     notice, this list of conditions and the following disclaimer in the
  *     documentation and/or other materials provided with the distribution.
  *
  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  * ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS BE LIABLE
  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  */
 
 #ifndef ValidationMessageClient_h
 #define ValidationMessageClient_h
 
 #include "platform/heap/Handle.h"
+#include "platform/text/TextDirection.h"
 #include "wtf/Forward.h"
 
 namespace blink {
 
 class Document;
 class Element;
 
 class ValidationMessageClient : public WillBeGarbageCollectedMixin {
 public:
     virtual ~ValidationMessageClient() { }
 
     // Show validation message for the specified anchor element. An
     // implementation of this function may hide the message automatically after
     // some period.
-    virtual void showValidationMessage(const Element& anchor, const String& message) = 0;
+    virtual void showValidationMessage(const Element& anchor, const String& mainMessage, TextDirection, const String& subMessage, TextDirection) = 0;
 
     // Hide validation message for the specified anchor if the message for the
     // anchor is already visible.
     virtual void hideValidationMessage(const Element& anchor) = 0;
 
     // Returns true if the validation message for the specified anchor element
     // is visible.
     virtual bool isValidationMessageVisible(const Element& anchor) = 0;
 
     virtual void documentDetached(const Document&) = 0;
 
     virtual void willBeDestroyed() = 0;
 
     virtual void trace(Visitor*) { }
 };
 
 }
 
 #endif