This is quite useful for developers to debug cpu and memory usage as well as GC timers.
Created attachment 300406 [details] Patch
You can see a screenshot here: http://people.igalia.com/cgarcia/mb-resources-overlay.png This is just an initial version, it doesn't have cool graphs showing the history like the Apple one, but we can add more stuff later.
Comment on attachment 300406 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=300406&action=review > Source/WebCore/PlatformGTK.cmake:66 > + page/linux/ResourceUsageOverlayLinux.cpp > + page/linux/ResourceUsageThreadLinux.cpp You have to add this in a Linux conditional somewhere... it's not going to work on FreeBSD or Darwin.
Committed r211631: <http://trac.webkit.org/changeset/211631>