[Android] Fix x86 build after 1f6acfe7dd08.

content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.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 "content/common/sandbox_linux/android/sandbox_bpf_base_policy_android.h"
 
 #include <errno.h>
 #include <fcntl.h>
 #include <linux/net.h>
 #include <sys/socket.h>
@@ skipping 22 matching lines @@
 #ifndef SOCK_CLOEXEC
 #define SOCK_CLOEXEC O_CLOEXEC
 #endif
 
 #ifndef SOCK_NONBLOCK
 #define SOCK_NONBLOCK O_NONBLOCK
 #endif
 
 namespace {
 
+#if !defined(__i386__)
 // Restricts the arguments to sys_socket() to AF_UNIX. Returns a BoolExpr that
 // evaluates to true if the syscall should be allowed.
 BoolExpr RestrictSocketArguments(const Arg<int>& domain,
                                  const Arg<int>& type,
                                  const Arg<int>& protocol) {
   const int kSockFlags = SOCK_CLOEXEC | SOCK_NONBLOCK;
   return AllOf(domain == AF_UNIX,
                AnyOf((type & ~kSockFlags) == SOCK_DGRAM,
                      (type & ~kSockFlags) == SOCK_STREAM),
                protocol == 0);
 }
+#endif  // !defined(__i386__)
 
 }  // namespace
 
 SandboxBPFBasePolicyAndroid::SandboxBPFBasePolicyAndroid()
     : SandboxBPFBasePolicy(),
       pid_(getpid()) {}
 
 SandboxBPFBasePolicyAndroid::~SandboxBPFBasePolicyAndroid() {}
 
 ResultExpr SandboxBPFBasePolicyAndroid::EvaluateSyscall(int sysno) const {
@@ skipping 124 matching lines @@
   }
 #endif
 
   if (override_and_allow)
     return Allow();
 
   return SandboxBPFBasePolicy::EvaluateSyscall(sysno);
 }
 
 }  // namespace content