Large IWYU cleanup for seccomp-bpf

sandbox/linux/seccomp-bpf/sandbox_bpf.h

 // Copyright (c) 2012 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.
 
 #ifndef SANDBOX_LINUX_SECCOMP_BPF_SANDBOX_BPF_H__
 #define SANDBOX_LINUX_SECCOMP_BPF_SANDBOX_BPF_H__
 
-#include <stddef.h>
-#include <sys/types.h>
-#include <sys/wait.h>
+#include <stdint.h>
 
-#include <algorithm>
-#include <limits>
 #include <map>
 #include <set>
-#include <utility>
 #include <vector>
 
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
-#include "sandbox/linux/seccomp-bpf/die.h"
 #include "sandbox/linux/seccomp-bpf/errorcode.h"
-#include "sandbox/linux/seccomp-bpf/linux_seccomp.h"
 #include "sandbox/linux/seccomp-bpf/trap.h"
 #include "sandbox/sandbox_export.h"
 
+struct sock_filter;
+
 namespace sandbox {
-
 class CodeGen;
 class SandboxBPFPolicy;
 class SandboxUnittestHelper;
 struct Instruction;
 
 class SANDBOX_EXPORT SandboxBPF {
  public:
   enum SandboxStatus {
     STATUS_UNKNOWN,      // Status prior to calling supportsSeccompSandbox()
     STATUS_UNSUPPORTED,  // The kernel does not appear to support sandboxing
@@ skipping 270 matching lines @@
   scoped_ptr<const SandboxBPFPolicy> policy_;
   Conds* conds_;
   bool sandbox_has_started_;
 
   DISALLOW_COPY_AND_ASSIGN(SandboxBPF);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_LINUX_SECCOMP_BPF_SANDBOX_BPF_H__