Disabled input/textarea doesn't trigger selection change
https://bugs.webkit.org/show_bug.cgi?id=85244

Reviewed by Ryosuke Niwa.

Source/WebCore:

Only rootEditableNode is there in <input> or <textarea>, 'select' event is fired.
Since readonly or disabled input/textarea element does not have editable element,
'select' event was not fired.

We don't need the check.

Test: fast/forms/input-readonly-select.html

* editing/FrameSelection.cpp:
(WebCore::FrameSelection::notifyRendererOfSelectionChange):

LayoutTests:

* fast/forms/input-readonly-select-expected.txt: Added.
* fast/forms/input-readonly-select.html: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@140936 268f45cc-cd09-0410-ab3c-d52691b4dbfc