Comment 21 for bug 1303676

Re-opening on webbrowser-app (ie container) as it seems we're using more memory that before, and the OOM killer removes webapps more quickly.

Some observations though:
- the situation gets worse when mixing old and new webapps, because we have both the oxide runtime in memory and the old qtwebkit one: openstreetmap in particular taxes memory quite heavily and is a sure way to get other webapps killed (keep in mind for testing)
- the OOM killer does not succeed in killing webapps properly: the first webapp-container is the one killed, but leaves the rest of the processes in the group
- this leads to duplicate app instances, and further confuses unity/appmgr which then fails at killing webapps as well