As reported by James Robinson in bug 55183 comment #4. See <http://build.chromium.org/f/chromium/layout_test_results/Webkit_Mac10_5/results/layout-test-results/fast/ruby/ruby-beforeafter-actual.png>.
Created attachment 83752 [details] Adjust line boundaries even if there are no expansion opportunities
Committed <http://trac.webkit.org/projects/webkit/changeset/79656>.