Rename fast/regions/repaint/increasing-region-content-height.html to something more clear
https://bugs.webkit.org/show_bug.cgi?id=126209

Reviewed by Mihnea Ovidenie.

Renamed test file name to better reflect the scenario it tests.

* fast/regions/repaint/repaint-element-inside-relative-region-expected.txt: Renamed from LayoutTests/fast/regions/repaint/increasing-region-content-height-expected.txt.
* fast/regions/repaint/repaint-element-inside-relative-region.html: Renamed from LayoutTests/fast/regions/repaint/increasing-region-content-height.html.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@161056 268f45cc-cd09-0410-ab3c-d52691b4dbfc