Eric Anholt 53f74b6aa9 Bugzilla #5120, #7246: In CW's GC ops, validate the backing GC against the ...

backing drawable if the serial numbers differ.  Fixes crash in XAA which
occurred when the DDX bumped the serial number on the backing drawable and
expected it to get re-validated, and we didn't because the wrapped drawable
hadn't been bumped.

2006-06-16 10:14:30 -07:00

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