Narrow Chromium TestExpectations for some hidpi failures to be Linux-only.
crbug.com/150682

Unreviewed, expectations change.

Also remove a no-longer-failing Mac expectation for
compositing/overflow/overflow-scaled-descendant-overlapping.html

* platform/chromium/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@129417 268f45cc-cd09-0410-ab3c-d52691b4dbfc
2 files changed