bridge.c: change 'uint' for 'guint'
bridge.c: change 'uint' for 'guint'

'uint' seems to work on Linux (GNU extension?) but it breaks on Mac OS,
so use 'guint' instead.

GNOME/at-spi2-core,Distrotech/at-spi2-atk,GNOME/at-spi2-core,GNOME/at-spi2-atk,Distrotech/at-spi2-atk,GNOME/at-spi2-core