Exceptional Checkin Rules
From MozillaWiki
In addition to our normal check in rules we have added a few special case rules that require either special sign off or additional work outside of the committed patch. Those are documented below.
New process types need AWSY support
In order to fully understand the memory impact of these changes, any new process type needs to be fully supported by AWSY (Are We Slim Yet) prior to landing. If you have any questions, please have a look at the wiki [1] or contact Eric Rahm.
Content process pref access whitelist
Access to prefs is controlled by a whitelist in dom/ipc/ContentPrefs.cpp. If you want to add a pref to that whitelist, first please reconsider if it is absolutely necessary. If you conclude it is, please get sign off from a DOM peer.