Prepare for date/time input datalist support

Source/core/html/shadow/PickerIndicatorElement.cpp

 /*
  * 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:
  *
  *     * 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 82 matching lines @@
     return HTMLDivElement::willRespondToMouseClickEvents();
 }
 
 void PickerIndicatorElement::didChooseValue(const String& value)
 {
     if (!m_pickerIndicatorOwner)
         return;
     m_pickerIndicatorOwner->pickerIndicatorChooseValue(value);
 }
 
+void PickerIndicatorElement::didChooseValue(double value)
+{
+    if (!m_pickerIndicatorOwner)
+        return;
+    m_pickerIndicatorOwner->pickerIndicatorChooseValue(value);
+}
+
 void PickerIndicatorElement::didEndChooser()
 {
     m_chooser.clear();
 }
 
 void PickerIndicatorElement::openPopup()
 {
     if (m_chooser)
         return;
     if (!document().page())
@@ skipping 20 matching lines @@
 }
 
 bool PickerIndicatorElement::isPickerIndicatorElement() const
 {
     return true;
 }
 
 }
 
 #endif