Unreviewed rebaseline.
Unreviewed rebaseline.

Colors changed slightly, but the test's intention is to verify scaling
works as expected and it continues to do so.

* platform/chromium-mac/compositing/overflow/overflow-scaled-descendant-overlapping-expected.png: Added.

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@127898 bbb929c8-8fbe-4397-9dbb-9b2b20218538
axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk,axinging/chromium-crosswalk