Reland: Introduce sys_sigprocmask and sys_sigaction. (patchset #4 id:80001 of https://codereview.ch…

sandbox/linux/BUILD.gn

Index: sandbox/linux/BUILD.gn
diff --git a/sandbox/linux/BUILD.gn b/sandbox/linux/BUILD.gn
index 21f856baaea87d6842b4277bdb61064ef2053845..84966854cec7762df3530489d16dfacb818f14ed 100644
--- a/sandbox/linux/BUILD.gn
+++ b/sandbox/linux/BUILD.gn
@@ -117,6 +117,7 @@ source_set("sandbox_linux_unittests_sources") {
       "seccomp-bpf/errorcode_unittest.cc",
       "seccomp-bpf/sandbox_bpf_unittest.cc",
       "seccomp-bpf/syscall_unittest.cc",
+      "seccomp-bpf/trap_unittest.cc",
     ]
   }
   if (compile_credentials) {
@@ -288,15 +289,16 @@ component("sandbox_services") {
 
 source_set("sandbox_services_headers") {
   sources = [
-    "system_headers/android_arm64_ucontext.h",
-    "system_headers/android_arm_ucontext.h",
-    "system_headers/android_i386_ucontext.h",
-    "system_headers/android_ucontext.h",
     "system_headers/arm64_linux_syscalls.h",
+    "system_headers/arm64_linux_ucontext.h",
     "system_headers/arm_linux_syscalls.h",
+    "system_headers/arm_linux_ucontext.h",
+    "system_headers/i386_linux_ucontext.h",
     "system_headers/linux_futex.h",
     "system_headers/linux_seccomp.h",
+    "system_headers/linux_signal.h",
     "system_headers/linux_syscalls.h",
+    "system_headers/linux_ucontext.h",
     "system_headers/x86_32_linux_syscalls.h",
     "system_headers/x86_64_linux_syscalls.h",
   ]