Amith Yamasani 7805a10c86 Show a user switching dialog before starting the user switch
switchUser() now first shows a dialog and the dialog calls
startUserInForeground to do the actual switch.

Bug: 16661752
Change-Id: Ie4e2e9eec8bf7c2116694072ea8555b8254a0e13
2014-08-22 13:00:22 -07:00
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