[test-infra] Do not try to have the runner window on top (#840)

WebKit will strongly throttle what happens in windows that are not the foreground
one. This in turn causes a lot of tests to fail. This window.focus() was largely
ineffective anyway, and were it to work for Safari it would actively break the
results.

View on GitHub: https://github.com/w3c/web-platform-tests/pull/840

Received on Tuesday, 8 April 2014 20:13:52 UTC