sandbox: style cleanup

sandbox/linux/bpf_dsl/bpf_dsl_unittest.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/bpf_dsl/bpf_dsl.h"
 
 #include <errno.h>
 #include <netinet/in.h>
 #include <sys/socket.h>
 #include <sys/utsname.h>
 
 #include "base/macros.h"
 #include "build/build_config.h"
 #include "sandbox/linux/seccomp-bpf/bpf_tests.h"
 #include "sandbox/linux/seccomp-bpf/errorcode.h"
 #include "sandbox/linux/seccomp-bpf/sandbox_bpf_policy.h"
 #include "sandbox/linux/seccomp-bpf/syscall.h"
 
-using namespace sandbox::bpf_dsl;
-
 // Helper macro to assert that invoking system call |sys| directly via
 // Syscall::Call with arguments |...| returns |res|.
 // Errors can be asserted by specifying a value like "-EINVAL".
 #define ASSERT_SYSCALL_RESULT(res, sys, ...) \
   BPF_ASSERT_EQ(res, Stubs::sys(__VA_ARGS__))
 
 namespace sandbox {
+namespace bpf_dsl {
 namespace {
 
 // Type safe stubs for tested system calls.
 class Stubs {
  public:
   static int getpgid(pid_t pid) { return Syscall::Call(__NR_getpgid, pid); }
   static int setuid(uid_t uid) { return Syscall::Call(__NR_setuid, uid); }
   static int setgid(gid_t gid) { return Syscall::Call(__NR_setgid, gid); }
 
   static int uname(struct utsname* buf) {
@@ skipping 220 matching lines @@
   ASSERT_SYSCALL_RESULT(-EINVAL, setuid, 0x0002);
 
   ASSERT_SYSCALL_RESULT(-EEXIST, setuid, 0x0011);
   ASSERT_SYSCALL_RESULT(-EEXIST, setuid, 0x0022);
 
   ASSERT_SYSCALL_RESULT(-EACCES, setuid, 0x0111);
   ASSERT_SYSCALL_RESULT(-EACCES, setuid, 0x0222);
 }
 
 }  // namespace
+}  // namespace bpf_dsl
 }  // namespace sandbox