Enable sandbox in local discovery utility process.

content/browser/utility_process_host_impl.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_BROWSER_UTILITY_PROCESS_HOST_IMPL_H_
 #define CONTENT_BROWSER_UTILITY_PROCESS_HOST_IMPL_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 19 matching lines @@
  public:
   UtilityProcessHostImpl(UtilityProcessHostClient* client,
                          base::SequencedTaskRunner* client_task_runner);
   virtual ~UtilityProcessHostImpl();
 
   // UtilityProcessHost implementation:
   virtual bool Send(IPC::Message* message) OVERRIDE;
   virtual bool StartBatchMode() OVERRIDE;
   virtual void EndBatchMode() OVERRIDE;
   virtual void SetExposedDir(const base::FilePath& dir) OVERRIDE;
+  virtual void EnableMDns() OVERRIDE;
   virtual void DisableSandbox() OVERRIDE;
   virtual void EnableZygote() OVERRIDE;
   virtual const ChildProcessData& GetData() OVERRIDE;
 #if defined(OS_POSIX)
   virtual void SetEnv(const base::EnvironmentVector& env) OVERRIDE;
 #endif
 
   void set_child_flags(int flags) { child_flags_ = flags; }
 
  private:
   // Starts a process if necessary.  Returns true if it succeeded or a process
   // has already been started via StartBatchMode().
   bool StartProcess();
 
   // BrowserChildProcessHost:
   virtual bool OnMessageReceived(const IPC::Message& message) OVERRIDE;
   virtual void OnProcessCrashed(int exit_code) OVERRIDE;
 
   // A pointer to our client interface, who will be informed of progress.
   scoped_refptr<UtilityProcessHostClient> client_;
   scoped_refptr<base::SequencedTaskRunner> client_task_runner_;
   // True when running in batch mode, i.e., StartBatchMode() has been called
   // and the utility process will run until EndBatchMode().
   bool is_batch_mode_;
 
   base::FilePath exposed_dir_;
 
+  // Whether utility process needs perform presandbox initialization for MDns.
+  bool is_mdns_enabled_;
+
   // Whether to pass switches::kNoSandbox to the child.
   bool no_sandbox_;
 
   // Flags defined in ChildProcessHost with which to start the process.
   int child_flags_;
 
   // Launch the utility process from the zygote. Defaults to false.
   bool use_linux_zygote_;
 
   base::EnvironmentVector env_;
 
   bool started_;
 
   scoped_ptr<BrowserChildProcessHostImpl> process_;
 
   // Used in single-process mode instead of process_.
   scoped_ptr<UtilityMainThread> in_process_thread_;
 
   DISALLOW_COPY_AND_ASSIGN(UtilityProcessHostImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_UTILITY_PROCESS_HOST_IMPL_H_