ppb_flash_fullscreen: don't jongle with events if vsync disabled
ppb_flash_fullscreen: don't jongle with events if vsync disabled

there is no point in passing events forth and back when vsync is
disabled. Handle them at once.

Papapashu/freshplayerplugin,reuben/freshplayerplugin,Papapashu/freshplayerplugin,reuben/freshplayerplugin,reuben/freshplayerplugin,Papapashu/freshplayerplugin