Take a heap snapshot of a big web app (e.g. gmail). Wait until it is loaded and parsed. Expand several object types so several object instances are visible at the same time. Start clicking on different objects to get retaining paths. As a result, retaining paths calculated will be mixed in the paths window (a clear indication is presence of several "Show next 100" buttons). Clicking on an object should either clean up previous paths and abandon their calculation, or open a new tab for retaining paths to demux calculation results.
Created attachment 101744 [details] Patch
Manually committed http://trac.webkit.org/changeset/91663 Web Inspector: [Chromium] Fix mixing of retaining path in heap profiler. https://bugs.webkit.org/show_bug.cgi?id=65028 Reviewed by Pavel Feldman. * inspector/front-end/DetailedHeapshotView.js: (WebInspector.HeapSnapshotPathFinderState): Added (WebInspector.HeapSnapshotRetainingPathsList): Extracted State-specific code