gtk_tree_view_column_cell_get_position() method is signalling into the
redererGetPreferredWidthCallback everytime it is run, causing a
recursive loop when MeasuredEvent has a listener in GTK3. I've disabled
and reinanbled the callback when calling
gtk_tree_view_column_cell_get_position() to fix this issue.

Tested on GTK3.14 -> GTK3.21+ and GTK2


Change-Id: I7a70bf73df3123414c59b1b1aae2cd8af96db4be
Signed-off-by: Ian Pun <ipun@redhat.com>