Transfer date/time value to the chooser as a double

public/web/WebDateTimeChooserCompletion.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
@@ skipping 18 matching lines @@
 #include "../platform/WebString.h"
 
 namespace blink {
 
 // Gets called back when WebViewClient finished choosing a date/time value.
 class WebDateTimeChooserCompletion {
 public:
 
     // Called with a date/time value in the HTML format. The callback instance
     // is destroyed when this method is called.
+    // FIXME: Remove. Deprecated in favor of double version.
     virtual void didChooseValue(const WebString&) = 0;
 
+    // Called with a date/time value in the HTML format. The callback instance
+    // is destroyed when this method is called. If the value is NaN it means an
+    // empty value. Value should not be infinity.
+    virtual void didChooseValue(double) = 0;
+
     // Called when a user closed the chooser without choosing a value. The
     // callback instance is destroyed when this method is called.
     virtual void didCancelChooser() = 0;
 
 protected:
     virtual ~WebDateTimeChooserCompletion() { }
 };
 
 } // namespace blink
 
 #endif