Add sandbox support for associating peer processes

sandbox/src/sandbox.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.
 
 // Sandbox is a sandbox library for windows processes. Use when you want a
 // 'privileged' process and a 'locked down process' to interact with.
 // The privileged process is called the broker and it is started by external
 // means (such as the user starting it). The 'sandboxed' process is called the
 // target and it is started by the broker. There can be many target processes
 // started by a single broker process. This library provides facilities
@@ skipping 66 matching lines @@
                                  const wchar_t* command_line,
                                  TargetPolicy* policy,
                                  PROCESS_INFORMATION* target) = 0;
 
   // This call blocks (waits) for all the targets to terminate.
   // Returns:
   //   ALL_OK if successful. All other return values imply failure.
   //   If the return is ERROR_GENERIC, you can call ::GetLastError() to get
   //   more information.
   virtual ResultCode WaitForAllTargets() = 0;
+
+  // Adds an unsandboxed process as a peer for policy decisions (e.g.
+  // HANDLES_DUP_ANY policy).
+  // Returns:
+  //   ALL_OK if successful. All other return values imply failure.
+  //   If the return is ERROR_GENERIC, you can call ::GetLastError() to get
+  //   more information.
+  virtual ResultCode AddTargetPeer(HANDLE peer_process) = 0;
 };
 
 // TargetServices models the current process from the perspective
 // of a target process. To obtain a pointer to it use
 // Sandbox::GetTargetServices(). Note that this call returns a non-null
 // pointer only if this process is in fact a target. A process is a target
 // only if the process was spawned by a call to BrokerServices::SpawnTarget().
 //
 // This API allows the target to gain access to resources with a high
 // privilege token and then when it is ready to perform dangerous activities
@@ skipping 42 matching lines @@
                                      DWORD target_process_id,
                                      HANDLE* target_handle,
                                      DWORD desired_access,
                                      DWORD options) = 0;
 };
 
 }  // namespace sandbox
 
 
 #endif  // SANDBOX_SRC_SANDBOX_H__