STR: - Open WebInspector > Timelines - Click the "Close" button for any of the sidebar items: Network Requests, Layout & Rendering, JavaScript & Events, CPU
Regressed by https://bugs.webkit.org/show_bug.cgi?id=196956
<rdar://problem/75790983>
Error log: ``` TypeError: this.deselect is not a function. (In 'this.deselect()', 'this.deselect' is undefined) (at TimelineTreeElement.js:80:26) ? @ TimelineTreeElement.js:80:26 dispatch @ Object.js:129:35 dispatchEventToListeners @ Object.js:137:17 _clicked @ TreeElementStatusButton.js:78:38 _clicked @ [native code] ```
Created attachment 424160 [details] Patch
Comment on attachment 424160 [details] Patch r=me
Committed r274960: <https://commits.webkit.org/r274960> All reviewed patches have been landed. Closing bug and clearing flags on attachment 424160 [details].