[WK2][EFL] Weird stripe at the end of the page
https://bugs.webkit.org/show_bug.cgi?id=108820

Reviewed by Noam Rosenthal.

The page scroll bound was artificially enlarged by one causing the artifact appearance.

* UIProcess/PageViewportController.cpp:
(WebKit::PageViewportController::boundContentsPositionAtScale):


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@141770 268f45cc-cd09-0410-ab3c-d52691b4dbfc