Use scoped_refptr and RefCountedThreadSafe for TargetPolicy.

content/common/sandbox_init_win.cc

 // 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.
 
 #include "content/public/common/sandbox_init.h"
 
 #include "base/command_line.h"
 #include "base/logging.h"
 #include "content/common/sandbox_win.h"
 #include "content/public/common/content_switches.h"
 #include "sandbox/win/src/sandbox.h"
 #include "sandbox/win/src/sandbox_types.h"
 
 namespace content {
 
 bool InitializeSandbox(sandbox::SandboxInterfaceInfo* sandbox_info) {
   const base::CommandLine& command_line =
       *base::CommandLine::ForCurrentProcess();
   sandbox::BrokerServices* broker_services = sandbox_info->broker_services;
   if (broker_services) {
     if (!InitBrokerServices(broker_services))
       return false;
 
     // IMPORTANT: This piece of code needs to run as early as possible in the
     // process because it will initialize the sandbox broker, which requires the
     // process to swap its window station. During this time all the UI will be
     // broken. This has to run before threads and windows are created.
     if (!command_line.HasSwitch(switches::kNoSandbox)) {
       // Precreate the desktop and window station used by the renderers.
-      sandbox::TargetPolicy* policy = broker_services->CreatePolicy();
+      scoped_refptr<sandbox::TargetPolicy> policy =
+          broker_services->CreatePolicy();
       sandbox::ResultCode result = policy->CreateAlternateDesktop(true);
       CHECK(sandbox::SBOX_ERROR_FAILED_TO_SWITCH_BACK_WINSTATION != result);
-      policy->Release();
     }
     return true;
   }
 
   if (command_line.HasSwitch(switches::kNoSandbox))
     return true;
 
   sandbox::TargetServices* target_services = sandbox_info->target_services;
   return InitTargetServices(target_services);
 }
 
 bool BrokerDuplicateSharedMemoryHandle(
     const base::SharedMemoryHandle& source_handle,
     base::ProcessId target_process_id,
     base::SharedMemoryHandle* target_handle) {
   HANDLE duped_handle;
   if (!BrokerDuplicateHandle(source_handle.GetHandle(), target_process_id,
                              &duped_handle,
                              FILE_GENERIC_READ | FILE_GENERIC_WRITE, 0)) {
     return false;
   }
 
   *target_handle = base::SharedMemoryHandle(duped_handle, target_process_id);
   return true;
 }
 
 }  // namespace content