http://tinderbox.mozilla.org/seamonkey/warnings.html#rickg You have three "<member_function> was hidden by <member_function>" warnings. The following is a description of the warning, http://www.cerfnet.com/~mpcline/On-Line-C++-FAQs/strange-inheritance.html#[23.3] Now you have a bug so you can check in the fix. =)
I took a closer look and this warning popped up because of harishd's checkin to nsToken.h. Adding him to the cc list. (rickg was listed as a reviewer, so I was not too far off.)
My bad..I admit that...but this is so bizzare. This shouldn't have been a warning but should have be an error. However, my compiler reported neither a "warning" nor an "error". As a matter of fact, I think, even the warning message seems to be wrong. I have a fix in hand which is ready to go in.
I am marking this FIXED and VERIFIED. Thank you for cleaning up the warning.