Skipped plugin-initiate-popup-window.html test.
Skipped plugin-initiate-popup-window.html test.

BUG=515577,507787

Review URL: https://codereview.chromium.org/1258203004

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@199762 bbb929c8-8fbe-4397-9dbb-9b2b20218538

Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk,Pluto-tv/blink-crosswalk