Apply renderer sandbox to utility processes.

content/common/sandbox_linux/bpf_utility_policy_linux.cc

Index: content/common/sandbox_linux/bpf_utility_policy_linux.cc
diff --git a/content/common/sandbox_linux/bpf_renderer_policy_linux.cc b/content/common/sandbox_linux/bpf_utility_policy_linux.cc
similarity index 72%
copy from content/common/sandbox_linux/bpf_renderer_policy_linux.cc
copy to content/common/sandbox_linux/bpf_utility_policy_linux.cc
index db5201018071c169ed9921433fa7895df978633a..12207b8ac2ae9b8debee52516dd7ed253ccce244 100644
--- a/content/common/sandbox_linux/bpf_renderer_policy_linux.cc
+++ b/content/common/sandbox_linux/bpf_utility_policy_linux.cc
@@ -1,8 +1,8 @@
-// Copyright 2013 The Chromium Authors. All rights reserved.
+// 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/bpf_renderer_policy_linux.h"
+#include "content/common/sandbox_linux/bpf_utility_policy_linux.h"
 
 #include <errno.h>
 
@@ -18,11 +18,19 @@ using sandbox::SyscallSets;
 
 namespace content {
 
-RendererProcessPolicy::RendererProcessPolicy() {}
-RendererProcessPolicy::~RendererProcessPolicy() {}
+UtilityProcessPolicy::UtilityProcessPolicy() {
+}
+UtilityProcessPolicy::~UtilityProcessPolicy() {
+}
+
+ErrorCode UtilityProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
+                                                int sysno) const {
+  // TODO(mdempsky): For now, this is just a copy of the renderer
+  // policy, which happens to work well for utility processes too.  It
+  // should be possible to limit further though.  In particular, the
+  // entries below annotated with bug references are most likely
+  // unnecessary.
 
-ErrorCode RendererProcessPolicy::EvaluateSyscall(SandboxBPF* sandbox,
-                                                 int sysno) const {
   switch (sysno) {
     case __NR_ioctl:
       return sandbox::RestrictIoctl(sandbox);