Allow the seccomp sandbox to be enabled, even if the suid sandbox has...

sandbox/linux/seccomp/syscall_table.h

 #ifndef SYSCALL_TABLE_H__
 #define SYSCALL_TABLE_H__
 
 #include <sys/types.h>
 
 #ifdef __cplusplus
 #include "securemem.h"
 extern "C" {
 namespace playground {
 #define SecureMemArgs SecureMem::Args
 #else
 #define SecureMemArgs void
 #define bool          int
 #endif
   #define UNRESTRICTED_SYSCALL ((void *)1)
 
   struct SyscallTable {
     void   *handler;
-    bool  (*trustedProcess)(int parentProc, int sandboxFd, int threadFdPub,
+    bool  (*trustedProcess)(int parentMapsFd, int sandboxFd, int threadFdPub,
                             int threadFd, SecureMemArgs* mem);
   };
   extern const struct SyscallTable syscallTable[]
     asm("playground$syscallTable")
 #if defined(__x86_64__)
     __attribute__((visibility("internal")))
 #endif
     ;
   extern const unsigned maxSyscall
     asm("playground$maxSyscall")
 #if defined(__x86_64__)
     __attribute__((visibility("internal")))
 #endif
     ;
 #ifdef __cplusplus
 } // namespace
 }
 #endif
 
 #endif // SYSCALL_TABLE_H__