Prepare for date/time input datalist support

public/web/WebDateTimeChooserParams.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 12 matching lines @@
  * SUCH DAMAGE.
  */
 
 #ifndef WebDateTimeChooserParams_h
 #define WebDateTimeChooserParams_h
 
 #include "../platform/WebRect.h"
 #include "../platform/WebString.h"
 #include "../platform/WebVector.h"
 #include "WebDateTimeInputType.h"
+#include "WebDateTimeSuggestion.h"
 
 namespace WebKit {
 
 // This class conveys various information to make date/time chooser UI.
 // See WebViewClient::openDateTimeChooser.
 struct WebDateTimeChooserParams {
     // The type of chooser to show.
     WebDateTimeInputType type;
     // Bounding rectangle of the requester element.
     WebRect anchorRectInScreen;
     // The current value of the requester element.
-    WebString currentValue;
-    // <datalist> option values associated to the requester element. These
-    // values should not be shown to users. The vector size might be 0.
-    WebVector<WebString> suggestionValues;
-    // Localized values of <datalist> options associated to the requester
-    // element. These values should be shown to users. The vector size must be
-    // same as suggestionValues size.
-    WebVector<WebString> localizedSuggestionValues;
-    // <datalist> option labels associated to the requester element. These
-    // values should be shown to users. The vector size must be same as
-    // suggestionValues size.
-    WebVector<WebString> suggestionLabels;
+    double currentValue;

[tkent, 2013/11/07 01:43:10]

You can't change the type now because it breaks Chromium compilation.
You should *add* |double doubleValue| or something.

+    // <datalist> option suggestions associated to the requester element. The
+    // vector size might be 0.
+    WebVector<WebDateTimeSuggestion> suggestions;
     // HTMLInputElement::min attribute value parsed in the valusAsNumber rule,
     // that is to say, milliseconds from the epoch for non-month types and
     // months from the epoch for month type. If the min attribute is missing,
     // this field has the hard minimum limit.
     double minimum;
     // Similar to minimum.
     double maximum;
     // Step value represented in milliseconds for non-month types, and
     // represetnted in months for month type.
     double step;
@@ skipping 11 matching lines @@
         , stepBase(0)
         , isRequired(false)
         , isAnchorElementRTL(false)
     {
     }
 };
 
 } // namespace WebKit
 
 #endif