Transfer date/time value to the chooser as a double

public/web/WebDateTimeChooserCompletion.h

Index: public/web/WebDateTimeChooserCompletion.h
diff --git a/public/web/WebDateTimeChooserCompletion.h b/public/web/WebDateTimeChooserCompletion.h
index 91fe00b64f5652f5c9c473a7a744f32251afbf7b..c3132bd939b8b3dc8e8ed6126bb6bbd4c69c871e 100644
--- a/public/web/WebDateTimeChooserCompletion.h
+++ b/public/web/WebDateTimeChooserCompletion.h
@@ -36,8 +36,14 @@ 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

[tkent, 2013/11/07 20:10:08]

What about infinity values?

[keishi, 2013/11/19 03:28:04]

It shouldn't be infinity. I added assertions to
BaseChooserOnlyDateAndTimeInputType::didChooseValue and
BaseMultipleFieldsDateAndTimeInputType::pickerIndicatorChooseValue

+    // empty value.
+    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;