* SUMMARY I am seeing forced layouts in TimelineOverview.prototype.updateLayout checking this._scrollContainer.offsetWidth. These seem unnecessary, as the scrollContainer did not change size at all. The container should only change if the ContentView changes size (window resize, sidebar expand/collapse), e.g. the normal ContentView.prototype.updateLayout.
Created attachment 235728 [details] [PATCH] Proposed Fix
<rdar://problem/17852407>
Comment on attachment 235728 [details] [PATCH] Proposed Fix View in context: https://bugs.webkit.org/attachment.cgi?id=235728&action=review > Source/WebInspectorUI/UserInterface/Views/TimelineOverview.js:224 > + updateLayoutForResize: function() Maybe we should/could start doing this in more places. Timeline is the first place is used updatLayout heavily to mean more than just resize.
Comment on attachment 235728 [details] [PATCH] Proposed Fix Clearing flags on attachment: 235728 Committed r171786: <http://trac.webkit.org/changeset/171786>
All reviewed patches have been landed. Closing bug.