This is a regression for bug 17773, the UI refresh.
This bug refers to little tip balloons that we used to show in the Inspector. In the old Inspector UI, when you went into the Network view we'd show a tip balloon next to each resource that we had a "tip" for. The idea was that the tips would be little suggestions for how web authors could improve the loading performance of each resource. The only tip that we had implemented would tell you to use server-side gzip compression. Clicking on the tip balloon once would show the tip in a message bubble. Clicking it again would hide the tip.
You can see a screenshot containing the tip balloons at http://webkit.org/blog/wp-content/uploads/2007/06/newinspector.png
The consensus is Tips are not coming back and the feature will live in a future Audits panel (tracked by bug 31665).
Should we close this bug then?
We should use this bug to remove the tips code.
Created attachment 44906 [details]
[PATCH] Remove Tips Code + Resources
Transmitting file data .....
Committed revision 52170.