[media-source-tests] Make redundant-seek use longer timeouts. (#1608)

I did a push with some logging. It looks like this test is currently just on
the border of the 10 second timeout, and sometimes gets killed by the timeout
mechanism before it can finish. Bumping up to 60.

Upstreamed from https://bugzilla.mozilla.org/show_bug.cgi?id=1126465

View on GitHub: https://github.com/w3c/web-platform-tests/pull/1608

Received on Wednesday, 4 February 2015 17:05:49 UTC