Custom validation message to take into account text direction

Source/core/page/ValidationMessageClient.h

Index: Source/core/page/ValidationMessageClient.h
diff --git a/Source/core/page/ValidationMessageClient.h b/Source/core/page/ValidationMessageClient.h
index ae2354cd578779bb3d6a26f62cf3ae61fd1db157..05378ca27458fe02be31dae05a4061e7eecaf932 100644
--- a/Source/core/page/ValidationMessageClient.h
+++ b/Source/core/page/ValidationMessageClient.h
@@ -34,14 +34,20 @@ namespace WebCore {
 class Document;
 class Element;
 
+
 class ValidationMessageClient : public WillBeGarbageCollectedMixin {
 public:
+    enum MessageType {
+        CannedMessage,
+        CustomMessage
+    };
+
     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& message, MessageType) = 0;
 
     // Hide validation message for the specified anchor if the message for the
     // anchor is already visible.