Replace "using namespace" statement with individual "using" statements

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

 // Copyright (c) 2013 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 <fcntl.h>
 #include <fcntl.h>
 #include <linux/futex.h>
@@ skipping 66 matching lines @@
 }  // namespace.
 
 using sandbox::bpf_dsl::Allow;
 using sandbox::bpf_dsl::Arg;
 using sandbox::bpf_dsl::BoolExpr;
 using sandbox::bpf_dsl::Error;
 using sandbox::bpf_dsl::If;
 using sandbox::bpf_dsl::ResultExpr;
 
 // TODO(mdempsky): Make BoolExpr a standalone class so these operators can
-// be resolved via argument-dependant lookup.
+// be resolved via argument-dependent lookup.
 using sandbox::bpf_dsl::operator||;
 using sandbox::bpf_dsl::operator&&;
 
 namespace sandbox {
 
 // Allow Glibc's and Android pthread creation flags, crash on any other
 // thread creation attempts and EPERM attempts to use neither
 // CLONE_VM, nor CLONE_THREAD, which includes all fork() implementations.
 ResultExpr RestrictCloneToThreadsAndEPERMFork() {
   const Arg<unsigned long> flags(0);
@@ skipping 116 matching lines @@
                  need_to_explicitly_blacklist_more_bits);
 
   const Arg<int> op(1);
   return If(op == FUTEX_CMP_REQUEUE_PI || op == FUTEX_CMP_REQUEUE_PI_PRIVATE ||
                 op == (FUTEX_CMP_REQUEUE_PI | FUTEX_CLOCK_REALTIME) ||
                 op == (FUTEX_CMP_REQUEUE_PI_PRIVATE | FUTEX_CLOCK_REALTIME),
             CrashSIGSYSFutex()).Else(Allow());
 }
 
 }  // namespace sandbox.