wpView: consolidate pausePlayers() and unsetPlayers(), they are almost the same. Prevent errors when instead of a player ME.js shows only a "Download File" placeholder (in IE). See #28905.
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git-svn-id: http://core.svn.wordpress.org/trunk@29054 1a063a9b-81f0-0310-95a4-ce76da25c4cd