Decouple Trap from ErrorCode

sandbox/linux/seccomp-bpf/errorcode.h

Index: sandbox/linux/seccomp-bpf/errorcode.h
diff --git a/sandbox/linux/seccomp-bpf/errorcode.h b/sandbox/linux/seccomp-bpf/errorcode.h
index a70be89580d332f7c183258f40d4095403c25f0d..b20b921aa6aad9c2a8f408e20d184a917d730beb 100644
--- a/sandbox/linux/seccomp-bpf/errorcode.h
+++ b/sandbox/linux/seccomp-bpf/errorcode.h
@@ -155,7 +155,7 @@ class SANDBOX_EXPORT ErrorCode {
   // If we are wrapping a callback, we must assign a unique id. This id is
   // how the kernel tells us which one of our different SECCOMP_RET_TRAP
   // cases has been triggered.
-  ErrorCode(Trap::TrapFnc fnc, const void* aux, bool safe, uint16_t id);
+  ErrorCode(Trap::TrapFnc fnc, const void* aux, bool safe);
 
   // Some system calls require inspection of arguments. This constructor
   // allows us to specify additional constraints.