Add some missing semi-colons in embedded JavaScript.

Some embedded JavaScript depended on ecmascript's automatic
magic semi-colon insertion. That is bad since that means that whitespace
becomes significant in the program and prevents stripping of new-lines.

BUG=

Review URL: https://codereview.chromium.org/223973002

git-svn-id: svn://svn.chromium.org/blink/trunk@170824 bbb929c8-8fbe-4397-9dbb-9b2b20218538