[chromium] Update test expectations.

Unreviewed rebaseline for layout test:
platform/chromium/fast/events/touch/touch-hit-rects-in-iframe.html

* platform/chromium-mac/platform/chromium/fast/events/touch/touch-hit-rects-in-iframe-expected.txt: Renamed from LayoutTests/platform/chromium-mac-snowleopard/platform/chromium/fast/events/touch/touch-hit-rects-in-iframe-expected.txt.

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@140463 268f45cc-cd09-0410-ab3c-d52691b4dbfc