Enable sandbox in local discovery utility process.

content/public/browser/utility_process_host.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 CONTENT_PUBLIC_BROWSER_UTILITY_PROCESS_HOST_H_
 #define CONTENT_PUBLIC_BROWSER_UTILITY_PROCESS_HOST_H_
 
 #include "base/process_util.h"
 #include "content/common/content_export.h"
 #include "ipc/ipc_sender.h"
@@ skipping 32 matching lines @@
   // to finish the utility process.
   virtual bool StartBatchMode() = 0;
 
   // Ends the utility process. Must be called after StartBatchMode().
   virtual void EndBatchMode() = 0;
 
   // Allows a directory to be opened through the sandbox, in case it's needed by
   // the operation.
   virtual void SetExposedDir(const base::FilePath& dir) = 0;
 
+  // Allows a mdns to use network in sandbox.
+  virtual void EnableMDns() = 0;
+
   // Make the process run without a sandbox.
   virtual void DisableSandbox() = 0;
 
   // If the sandbox is being used and we are on Linux, launch the process from
   // the zygote. Can only be used for tasks that do not require FS access.
   virtual void EnableZygote() = 0;
 
   // Returns information about the utility child process.
   virtual const ChildProcessData& GetData() = 0;
 
 #if defined(OS_POSIX)
   virtual void SetEnv(const base::EnvironmentVector& env) = 0;
 #endif
 };
 
 };  // namespace content
 
 #endif  // CONTENT_PUBLIC_BROWSER_UTILITY_PROCESS_HOST_H_