An implementation bug causes NPN_PluginThreadAsyncCall to not call the callback in a timely fashion. Trivial patch attached which has been tested and verified.
Created attachment 24340 [details] Patch fixing problem
Comment on attachment 24340 [details] Patch fixing problem I assume this was meant for review, marking as such.
andersca2:WebCore andersca$ svn ci Sending WebCore/ChangeLog Sending WebCore/plugins/PluginMainThreadScheduler.cpp Transmitting file data .. Committed revision 37636.
Comment on attachment 24340 [details] Patch fixing problem This was clearly reviewed by Anders.
*** Bug 21503 has been marked as a duplicate of this bug. ***