date/time inputs should not handle keyboard events if they aren't focused.

Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp

Index: Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp
diff --git a/Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp b/Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp
index a9b9736ebde606906117d7964baf111f19e93395..35bfcbe6e39a0918b837f282f5184f7aded09304 100644
--- a/Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp
+++ b/Source/core/html/forms/BaseMultipleFieldsDateAndTimeInputType.cpp
@@ -432,6 +432,8 @@ void BaseMultipleFieldsDateAndTimeInputType::requiredAttributeChanged()
 
 void BaseMultipleFieldsDateAndTimeInputType::handleKeydownEvent(KeyboardEvent* event)
 {
+    if (!element().focused())
+        return;
     if (m_pickerIndicatorIsVisible
         && ((event->keyIdentifier() == "Down" && event->getModifierState("Alt")) || (LayoutTheme::theme().shouldOpenPickerWithF4Key() && event->keyIdentifier() == "F4"))) {
         if (PickerIndicatorElement* element = pickerIndicatorElement())