Don't pass ProcessHandle through ChildProcessHostDelegate.

chrome/service/service_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 CHROME_SERVICE_SERVICE_UTILITY_PROCESS_HOST_H_
 #define CHROME_SERVICE_SERVICE_UTILITY_PROCESS_HOST_H_
 
 #include "build/build_config.h"
 
 #include "base/memory/ref_counted.h"
@@ skipping 97 matching lines @@
 
  protected:
   bool Send(IPC::Message* msg);
 
   // Allows this method to be overridden for tests.
   virtual base::FilePath GetUtilityProcessCmd();
 
   // ChildProcessHostDelegate implementation:
   virtual void OnChildDisconnected() override;
   virtual bool OnMessageReceived(const IPC::Message& message) override;
-  virtual base::ProcessHandle GetHandle() const override;
+  virtual const base::Process& GetProcess() const override;
 
  private:
   // Starts a process.  Returns true iff it succeeded.
   bool StartProcess(bool no_sandbox);
 
   // Launch the child process synchronously.
   bool Launch(base::CommandLine* cmd_line, bool no_sandbox);
 
-  base::ProcessHandle handle() const { return handle_; }
+  base::ProcessHandle handle() const { return process_.Handle(); }
 
   void OnMetafileSpooled(bool success);
   void OnPDFToEmfFinished(bool success);
 
   // Messages handlers:
   void OnRenderPDFPagesToMetafilesPageCount(int page_count);
   void OnRenderPDFPagesToMetafilesPageDone(bool success, float scale_factor);
   void OnGetPrinterCapsAndDefaultsSucceeded(
       const std::string& printer_name,
       const printing::PrinterCapsAndDefaults& caps_and_defaults);
   void OnGetPrinterCapsAndDefaultsFailed(const std::string& printer_name);
   void OnGetPrinterSemanticCapsAndDefaultsSucceeded(
       const std::string& printer_name,
       const printing::PrinterSemanticCapsAndDefaults& caps_and_defaults);
   void OnGetPrinterSemanticCapsAndDefaultsFailed(
       const std::string& printer_name);
 
   scoped_ptr<content::ChildProcessHost> child_process_host_;
-  base::ProcessHandle handle_;
+  base::Process process_;
   // A pointer to our client interface, who will be informed of progress.
   scoped_refptr<Client> client_;
   scoped_refptr<base::MessageLoopProxy> client_message_loop_proxy_;
   bool waiting_for_reply_;
 
   // Start time of operation.
   base::Time start_time_;
 
   class PdfToEmfState;
   scoped_ptr<PdfToEmfState> pdf_to_emf_state_;
 
   base::WeakPtrFactory<ServiceUtilityProcessHost> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ServiceUtilityProcessHost);
 };
 
 #endif  // CHROME_SERVICE_SERVICE_UTILITY_PROCESS_HOST_H_