The following tests are failing/timing out on the Mac ports: http/tests/inspector/console-cross-origin-iframe-logging.html http/tests/inspector/inspect-element.html http/tests/inspector/resource-har-conversion.html Adding them to platform/mac/Skipped, please remove them when this is fixed.
<rdar://problem/11150831>
It appears that http/tests/inspector/resource-har-conversion.html is the only test failing now.
Closing as invalid, as this bug pertains to the old inspector UI and/or its tests. Please file a new bug (https://www.webkit.org/new-inspector-bug) if the bug/feature/issue is still relevant to WebKit trunk.