Set NeedsRebaseline for fast/repaint/japanese-rl-selection-clear.html

BUG=394698
TBR=wangxianzhu@chromium.org

Review URL: https://codereview.chromium.org/482113002

git-svn-id: svn://svn.chromium.org/blink/trunk@180495 bbb929c8-8fbe-4397-9dbb-9b2b20218538