Opening this sidebar doesn't show the metrics. Present in r47409, I haven't searched when this broke.
Created attachment 35068 [details] patch
Committing to http://svn.webkit.org/repository/webkit/trunk ... M WebCore/ChangeLog M WebCore/inspector/front-end/MetricsSidebarPane.js Committed r47453
Created attachment 38671 [details] another missing ".id" Sorry about that!
Committing to http://svn.webkit.org/repository/webkit/trunk ... M WebCore/ChangeLog M WebCore/inspector/front-end/MetricsSidebarPane.js Committed r47820