Fix forwarding of XPC messages to launchd on 10.10 and higher.

sandbox/mac/launchd_interception_server.h

Index: sandbox/mac/launchd_interception_server.h
diff --git a/sandbox/mac/launchd_interception_server.h b/sandbox/mac/launchd_interception_server.h
index 87ee83e8f98627c16bb4a78a1e522b6dd97cca82..0375ca2352e46c14c8e6252d4aef3c483e7a4780 100644
--- a/sandbox/mac/launchd_interception_server.h
+++ b/sandbox/mac/launchd_interception_server.h
@@ -56,6 +56,9 @@ class LaunchdInterceptionServer : public MessageDemuxer {
   // The Mach IPC server.
   scoped_ptr<MessageServer> message_server_;
 
+  // Whether or not the system is using an XPC-based launchd.
+  bool xpc_launchd_;
+
   // The Mach port handed out in reply to denied look up requests. All denied
   // requests share the same port, though nothing reads messages from it.
   base::mac::ScopedMachReceiveRight sandbox_port_;