Update fast/dom/{Element,Range}/getClientRects.html after r177774

Update fast/dom/{Element,Range}/getClientRects.html after r177774
https://bugs.webkit.org/show_bug.cgi?id=141665

Reviewed by Alexey Proskuryakov.

Line breaking is different due to different text metrics.

* fast/dom/Element/getClientRects-expected.txt:
* fast/dom/Element/getClientRects.html:
* fast/dom/Range/getClientRects-expected.txt:
* fast/dom/Range/getClientRects.html:
* platform/mac/TestExpectations:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@180178 268f45cc-cd09-0410-ab3c-d52691b4dbfc