'inherit' and '-moz-initial' are either not stored correctly or not serialized correctly for 4 properties: -moz-force-broken-image-icon, quotes, -moz-box-ordinal-group, and background-position. This shows up in two mochitests I'm going to check in to layout/style/tests/ shortly, test_inherit_storage.html and test_initial_storage.html.
Created attachment 259661 [details] [diff] [review] patch for 3 of the 4
Comment on attachment 259661 [details] [diff] [review] patch for 3 of the 4 Looks reasonable!
Checked in above patch; 1 property left.
background-position fixed bug bug 258080.