Re-rebaseline flaky tests after auto-rebaseline tool picked the "wrong" rebaselines

TBR=ojan

Review URL: https://codereview.chromium.org/19917005

git-svn-id: svn://svn.chromium.org/blink/trunk@154841 bbb929c8-8fbe-4397-9dbb-9b2b20218538