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diff --git a/sandbox/win/src/sandbox_factory.h b/sandbox/win/src/sandbox_factory.h
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+++ b/sandbox/win/src/sandbox_factory.h
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+// Copyright (c) 2006-2008 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 SANDBOX_SRC_SANDBOX_FACTORY_H__
+#define SANDBOX_SRC_SANDBOX_FACTORY_H__
+
+#include "sandbox/src/sandbox.h"
+
+// SandboxFactory is a set of static methods to get access to the broker
+// or target services object. Only one of the two methods (GetBrokerServices,
+// GetTargetServices) will return a non-null pointer and that should be used
+// as the indication that the process is the broker or the target:
+//
+// BrokerServices* broker_services = SandboxFactory::GetBrokerServices();
+// if (NULL != broker_services) {
+//   //we are the broker, call broker api here
+//   broker_services->Init();
+// } else {
+//   TargetServices* target_services = SandboxFactory::GetTargetServices();
+//   if (NULL != target_services) {
+//    //we are the target, call target api here
+//    target_services->Init();
+//  }
+//
+// The methods in this class are expected to be called from a single thread
+//
+// The Sandbox library needs to be linked against the main executable, but
+// sometimes the API calls are issued from a DLL that loads into the exe
+// process. These factory methods then need to be called from the main
+// exe and the interface pointers then can be safely passed to the DLL where
+// the Sandbox API calls are made.
+namespace sandbox {
+
+class SandboxFactory {
+ public:
+  // Returns the Broker API interface, returns NULL if this process is the
+  // target.
+  static BrokerServices* GetBrokerServices();
+
+  // Returns the Target API interface, returns NULL if this process is the
+  // broker.
+  static TargetServices* GetTargetServices();
+ private:
+  DISALLOW_IMPLICIT_CONSTRUCTORS(SandboxFactory);
+};
+
+}  // namespace sandbox
+
+#endif  // SANDBOX_SRC_SANDBOX_FACTORY_H__