Unreviewed GTK gardening.
Rebaselining tests that are possible to and required to be rebaselined

* platform/gtk-wk1/fast/writing-mode/Kusa-Makura-background-canvas-expected.txt:
* platform/gtk/editing/input/scroll-to-edge-if-line-break-at-end-of-document-contenteditable-expected.txt: Added.
* platform/gtk/editing/selection/drag-start-event-client-x-y-expected.txt: Added.
* platform/gtk/fast/dom/Range/getClientRects-expected.txt:
* platform/gtk/fast/events/remove-target-with-shadow-in-drag-expected.txt:
* platform/gtk/fast/js/dom-static-property-for-in-iteration-expected.txt:
* platform/gtk/fast/js/function-length-expected.txt: Added.
* platform/gtk/fast/sub-pixel/selection/selection-gaps-at-fractional-offsets-expected.txt:
* platform/gtk/media/media-can-play-ogg-expected.txt: Added.
* platform/gtk/media/video-played-collapse-expected.txt:
* platform/gtk/media/video-volume-slider-expected.txt:


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@149367 268f45cc-cd09-0410-ab3c-d52691b4dbfc