Rebaseline http/tests/inspector/websocket/websocket-handshake.html

https://crrev.com/8f00db8b5156e1bc256828d38ead66d91379411a adds a space.

BUG=389914
TBR=jgraettinger@chromium.org

Review URL: https://codereview.chromium.org/601083003

git-svn-id: svn://svn.chromium.org/blink/trunk@182670 bbb929c8-8fbe-4397-9dbb-9b2b20218538