Revert "Replacing Chrome 17 with Chrome 20 (now stable)"
Revert "Replacing Chrome 17 with Chrome 20 (now stable)"

This reverts commit ddb863708b45661fa9f5e5ae4ecf13d762e3c66d.

newzly/testswarm,newzly/testswarm,newzly/testswarm,newzly/testswarm