[Chromium] Calendar Picker: Popup position is wrong when there are

[Chromium] Calendar Picker: Popup position is wrong when there are
no enough space below the target date field
https://bugs.webkit.org/show_bug.cgi?id=84007

Reviewed by Hajime Morita.

The popup was detached from the origin element because
calendarPicker.js resizes its window. To fix this bug, we move the
window position vertically when it is resized.

No new tests. This is not testable in WebKit.

* src/WebPagePopupImpl.cpp:
(WebKit::PagePopupChromeClient::setWindowRect):
If this request is just a resize and m_isPutAboveOrigin is true,
update the vertical position so that the popup attaches to the
origin rectangle.
(WebKit::WebPagePopupImpl::WebPagePopupImpl):
Initialize m_isPutAboveOrigin with false.
(WebKit::WebPagePopupImpl::init): Set m_isPutAboveOrigin true.
* src/WebPagePopupImpl.h:
(WebPagePopupImpl): Add m_isPutAboveOrigin.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@114357 268f45cc-cd09-0410-ab3c-d52691b4dbfc