diff -r 000000000000 -r 6474c204b198 security/sandbox/win/src/handle_interception.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/security/sandbox/win/src/handle_interception.cc	Wed Dec 31 06:09:35 2014 +0100
@@ -0,0 +1,45 @@
+// 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 "sandbox/win/src/handle_interception.h"
+
+#include "sandbox/win/src/crosscall_client.h"
+#include "sandbox/win/src/ipc_tags.h"
+#include "sandbox/win/src/sandbox_factory.h"
+#include "sandbox/win/src/sandbox_nt_util.h"
+#include "sandbox/win/src/sharedmem_ipc_client.h"
+#include "sandbox/win/src/target_services.h"
+
+namespace sandbox {
+
+ResultCode DuplicateHandleProxy(HANDLE source_handle,
+                                DWORD target_process_id,
+                                HANDLE* target_handle,
+                                DWORD desired_access,
+                                DWORD options) {
+  *target_handle = NULL;
+
+  void* memory = GetGlobalIPCMemory();
+  if (NULL == memory)
+    return SBOX_ERROR_NO_SPACE;
+
+  SharedMemIPCClient ipc(memory);
+  CrossCallReturn answer = {0};
+  ResultCode code = CrossCall(ipc, IPC_DUPLICATEHANDLEPROXY_TAG,
+                              source_handle, target_process_id,
+                              desired_access, options, &answer);
+  if (SBOX_ALL_OK != code)
+    return code;
+
+  if (answer.win32_result) {
+    ::SetLastError(answer.nt_status);
+    return SBOX_ERROR_GENERIC;
+  }
+
+  *target_handle = answer.handle;
+  return SBOX_ALL_OK;
+}
+
+}  // namespace sandbox
+