I get an assertion when running this test locally, always reproducible by repeating it multiple times:
run-webkit-tests plugins/snapshotting/snapshot-plugin-not-quite-blocked-by-image.html --repeat 100
The reason is that the QuickTime plug-in is 32-bit, so it fails to initialize, PluginView::didFailToInitializePlugin() sets m_plugin to 0, but then we start m_pluginSnapshotTimer regardless.
This makes me confused about how this test (or other snapshotting tests) can ever pass on any debug local builds. They all expect a snapshot that shouldn't be possible to make.
See also rdar://problem/18994117, rdar://problem/16097212.
Created attachment 248764 [details]
Comment on attachment 248764 [details]
Clearing flags on attachment: 248764
Committed r181599: <http://trac.webkit.org/changeset/181599>
All reviewed patches have been landed. Closing bug.