From crash report this exists on OS X too, previously the fix is only
available on Linux. However we should remove all calls of protocol
things in UI thread in future.
// Remember the protocol object, used for emitting event later.
g_protocol_object.reset(target);
-#if defined(OS_LINUX)
// Make sure the job factory has been created.
AtomBrowserContext::Get()->url_request_context_getter()->
GetURLRequestContext();
-#endif
NODE_SET_METHOD(target, "registerProtocol", RegisterProtocol);
NODE_SET_METHOD(target, "unregisterProtocol", UnregisterProtocol);