[Android] Get renderers working again under seccomp-bpf.

content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.cc

Index: content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.cc
diff --git a/content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.cc b/content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.cc
index 8ce5f868da45a221243a472b74622ed65bad3faa..c831390cb96828a0366d4f53f5db4abe2323dd69 100644
--- a/content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.cc
+++ b/content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.cc
@@ -27,6 +27,11 @@ ResultExpr SandboxBPFBasePolicyAndroid::EvaluateSyscall(int sysno) const {
     case __NR_clone:
     case __NR_epoll_pwait:
     case __NR_flock:
+#if defined(__x86_64__) || defined(__aarch64__)
+    case __NR_newfstatat:
+#elif defined(__i386__) || defined(__arm__) || defined(__mips__)
+    case __NR_fstatat64:
+#endif
     case __NR_getpriority:
     case __NR_ioctl:
     case __NR_mremap:
@@ -35,13 +40,14 @@ ResultExpr SandboxBPFBasePolicyAndroid::EvaluateSyscall(int sysno) const {
     // access. It may be possible to restrict the filesystem with SELinux.
     // Currently we rely on the app/service UID isolation to create a
     // filesystem "sandbox".
-#if !ARCH_CPU_ARM64
+#if !defined(ARCH_CPU_ARM64)
     case __NR_open:
 #endif
     case __NR_openat:
     case __NR_pread64:
     case __NR_rt_sigtimedwait:
     case __NR_setpriority:
+    case __NR_set_tid_address:
     case __NR_sigaltstack:
 #if defined(__i386__) || defined(__arm__)
     case __NR_ugetrlimit: