Merge 105386 - REGRESSION(r100111): A 'change' event does not fire when a mouse drag

Merge 105386 - REGRESSION(r100111): A 'change' event does not fire when a mouse drag
occurs to switch elements in a listbox <select>
https://bugs.webkit.org/show_bug.cgi?id=76244

Reviewed by Hajime Morita.

Source/WebCore:

Test: fast/forms/select/listbox-drag-in-non-multiple.html

* html/HTMLSelectElement.cpp:
(WebCore::HTMLSelectElement::updateSelectedState):
Do not update m_activeSelectionState for non-multiple <select>.
(WebCore::HTMLSelectElement::listBoxDefaultEventHandler):
Use setActiveSelection*Index() and updateListBoxSelection(true) instead
of updateSelectedState() because updateSelectedState() updates
m_lastOnChangeSelection and will prevent the mouseup handler from
dispatching 'change' event.
We should not call listBoxOnChange() in the mousemove handler in order
to align the behavior of IE and Firefox.

LayoutTests:

* fast/forms/resources/common.js:
(mouseMoveToIndexInListbox): Added.
* fast/forms/select/listbox-drag-in-non-multiple-expected.txt: Added.
* fast/forms/select/listbox-drag-in-non-multiple.html: Added.


TBR=tkent@chromium.org
BUG=crbug.com/110068
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=105692

[tkent, 2012-01-24 05:21:49]

LGTM