Explicitly defines the kClockSystemTrace in the syscall parameters test

sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions_unittests.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "sandbox/linux/seccomp-bpf-helpers/syscall_parameters_restrictions.h"
 
 #include <errno.h>
 #include <sched.h>
 #include <sys/resource.h>
 #include <sys/syscall.h>
@@ skipping 74 matching lines @@
 }
 
 BPF_DEATH_TEST_C(ParameterRestrictions,
                  clock_gettime_crash_monotonic_raw,
                  DEATH_SEGV_MESSAGE(sandbox::GetErrorMessageContentForTests()),
                  RestrictClockIdPolicy) {
   struct timespec ts;
   clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
 }
 
-#if defined(OS_LINUX)
-
-BPF_DEATH_TEST_C(ParameterRestrictions,
-                 clock_gettime_crash_system_trace,
-                 DEATH_SEGV_MESSAGE(sandbox::GetErrorMessageContentForTests()),
-                 RestrictClockIdPolicy) {
-  struct timespec ts;
-  clock_gettime(base::TraceTicks::kClockSystemTrace, &ts);
-}
-
-#endif  // defined(OS_LINUX)
-
 #if !defined(OS_ANDROID)
 BPF_DEATH_TEST_C(ParameterRestrictions,
                  clock_gettime_crash_cpu_clock,
                  DEATH_SEGV_MESSAGE(sandbox::GetErrorMessageContentForTests()),
                  RestrictClockIdPolicy) {
   // We can't use clock_getcpuclockid() because it's not implemented in newlib,
   // and it might not work inside the sandbox anyway.
   const pid_t kInitPID = 1;
   const clockid_t kInitCPUClockID =
       MAKE_PROCESS_CPUCLOCK(kInitPID, CPUCLOCK_SCHED);
@@ skipping 122 matching lines @@
                  getrusage_crash_not_self,
                  DEATH_SEGV_MESSAGE(sandbox::GetErrorMessageContentForTests()),
                  RestrictGetrusagePolicy) {
   struct rusage usage;
   getrusage(RUSAGE_CHILDREN, &usage);
 }
 
 }  // namespace
 
 }  // namespace sandbox