Remove display() from more layout tests

These are the remaining tests that call display() directly and also do
not need actually need a paint phase to test what they intend to.

BUG=345027

Review URL: https://codereview.chromium.org/196573042

git-svn-id: svn://svn.chromium.org/blink/trunk@170239 bbb929c8-8fbe-4397-9dbb-9b2b20218538