Calendar Picker: Fix a crash by changing input type.

Calendar Picker: Fix a crash by changing input type.
https://bugs.webkit.org/show_bug.cgi?id=86007

Reviewed by Hajime Morita.

.:

* ManualTests/forms/calendar-picker-crash-by-type-change.html: Added.

Source/WebCore:

Manual test: forms/calendar-picker-crash-by-type-change.html

* html/shadow/CalendarPickerElement.cpp:
(WebCore::CalendarPickerElement::~CalendarPickerElement):
Added. Make sure the popup is closed.
* html/shadow/CalendarPickerElement.h:
(CalendarPickerElement): Add declaration of the destructor.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@116611 268f45cc-cd09-0410-ab3c-d52691b4dbfc