Prepare for date/time input datalist support

Source/core/html/HTMLInputElement.cpp

 /*
  * Copyright (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  *           (C) 2001 Dirk Mueller (mueller@kde.org)
  * Copyright (C) 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011 Apple Inc. All rights reserved.
  *           (C) 2006 Alexey Proskuryakov (ap@nypop.com)
  * Copyright (C) 2007 Samuel Weinig (sam@webkit.org)
  * Copyright (C) 2010 Google Inc. All rights reserved.
  * Copyright (C) 2008 Torch Mobile Inc. All rights reserved. (http://www.torchmobile.com/)
  * Copyright (C) 2012 Samsung Electronics. All rights reserved.
@@ skipping 1827 matching lines @@
     parameters.anchorRectInRootView = document().view()->contentsToRootView(pixelSnappedBoundingBox());
     parameters.currentValue = value();
     parameters.doubleValue = m_inputType->valueAsDouble();
     parameters.isAnchorElementRTL = computedStyle()->direction() == RTL;
     if (RuntimeEnabledFeatures::dataListElementEnabled()) {
         if (HTMLDataListElement* dataList = this->dataList()) {
             RefPtr<HTMLCollection> options = dataList->options();
             for (unsigned i = 0; HTMLOptionElement* option = toHTMLOptionElement(options->item(i)); ++i) {
                 if (!isValidValue(option->value()))
                     continue;
-                parameters.suggestionValues.append(sanitizeValue(option->value()));
-                parameters.localizedSuggestionValues.append(localizeValue(option->value()));
-                parameters.suggestionLabels.append(option->value() == option->label() ? String() : option->label());
+                DateTimeSuggestion suggestion;
+                suggestion.value = m_inputType->parseToNumber(option->value(), Decimal::nan()).toDouble();
+                if (std::isnan(suggestion.value))
+                    continue;
+                suggestion.localizedValue = localizeValue(option->value());
+                suggestion.label = option->value() == option->label() ? String() : option->label();
+                parameters.suggestions.append(suggestion);
             }
         }
     }
     return true;
 }
 
 bool HTMLInputElement::supportsInputModeAttribute() const
 {
     return m_inputType->supportsInputModeAttribute();
 }
 
 bool HTMLInputElement::isInteractiveContent() const
 {
     return m_inputType->isInteractiveContent();
 }
 
 #if ENABLE(INPUT_MULTIPLE_FIELDS_UI)
 PassRefPtr<RenderStyle> HTMLInputElement::customStyleForRenderer()
 {
     return m_inputTypeView->customStyleForRenderer(originalStyleForRenderer());
 }
 #endif
 
 } // namespace