[patch x7] Fix memory leaks in implementations of common widgets
Submitted by Alan Jenkins
Link to original bug (#772859)
Description
GTK causes Nautilus to leak over 1MB per window (#772598). (Technically "still reachable" instead of leaked, because of how GTK manages memory).
With this patch series, per-window leakage falls to about 100kB. I expect the exact figures are variable, but it's a notable difference.