Don't set focus on GTK password entry.
Don't set focus on GTK password entry.

For an old bug:
https://bugzilla.redhat.com/show_bug.cgi?id=484643
Input method should be disabled on password entry for security reason.

BUG=none
TEST=manually with gtk-demo "Entry Buffer" example

Review URL: http://codereview.appspot.com/5319053

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