[Qt][Wk2] Add an API test for scroll request from javascript

[Qt][Wk2] Add an API test for scroll request from javascript
https://bugs.webkit.org/show_bug.cgi?id=72407

New API test added for QQuickWebView for javascript scroll request
Patch by Dinu Jacob <dinu.jacob@nokia.com> on 2011-11-18
Reviewed by Simon Hausmann.

* UIProcess/API/qt/tests/html/scroll.html: Added.
* UIProcess/API/qt/tests/qquickwebview/tst_qquickwebview.cpp:
(tst_QQuickWebView::scrollRequest):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@100816 268f45cc-cd09-0410-ab3c-d52691b4dbfc