Rule node sweeping should be paranoid

[Google Code Exporter]

And now it is (classilla.layout.aggressive_style_cleanup). This defaults to 
false, which is crash-free but uses more memory. If people run into low memory 
states, they can toggle this on and restart the browser to see if it helps. 
From issue 165.

Original issue reported on code.google.com by [e-mail] on 21 Feb 2012 at 2:39

[Google Code Exporter]

Changed to use a sentinel value, but we'll leave the pref and hook it up if 
needed.

Original comment by [e-mail] on 25 Jun 2012 at 3:39

• Changed title: Rule node sweeping should be paranoid

[Google Code Exporter]

Sentinel has not crashed since. We need to get this out.

Original comment by [e-mail] on 29 Aug 2012 at 1:32

[Google Code Exporter]

Original comment by [e-mail] on 19 Oct 2012 at 4:50

• Changed state: Verified