This adds support for displaying events that happened off the main thread as hollow bars aligned to the latest top-level event before the background event.
Created attachment 185987 [details] Patch
Comment on attachment 185987 [details] Patch View in context: https://bugs.webkit.org/attachment.cgi?id=185987&action=review > Source/WebCore/inspector/Inspector.json:2576 > + { "name": "thread", "type": "string", "optional": true, "description": "If present, identifies the thread that produced the event." }, ThreadId?
Committed r144039: <http://trac.webkit.org/changeset/144039>