Rebaseline of input[type=search] tests.

BUG=254971
TBR=keishi@chromium.org

Review URL: https://codereview.chromium.org/19330002

git-svn-id: svn://svn.chromium.org/blink/trunk@154268 bbb929c8-8fbe-4397-9dbb-9b2b20218538