Fixes for re-enabling more MSVC level 4 warnings: sandbox/ edition

sandbox/win/src/sync_policy.h

 // 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_SYNC_POLICY_H__
 #define SANDBOX_SRC_SYNC_POLICY_H__
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 15 matching lines @@
   // name is the sync object name, semantics is the desired semantics for the
   // open or create and policy is the policy generator to which the rules are
   // going to be added.
   static bool GenerateRules(const wchar_t* name,
                             TargetPolicy::Semantics semantics,
                             LowLevelPolicy* policy);
 
   // Performs the desired policy action on a request.
   // client_info is the target process that is making the request and
   // eval_result is the desired policy action to accomplish.
-  static DWORD CreateEventAction(EvalResult eval_result,
-                                 const ClientInfo& client_info,
-                                 const base::string16 &event_name,
-                                 uint32 event_type,
-                                 uint32 initial_state,
-                                 HANDLE *handle);
-  static DWORD OpenEventAction(EvalResult eval_result,
-                               const ClientInfo& client_info,
-                               const base::string16 &event_name,
-                               uint32 desired_access,
-                               HANDLE *handle);
+  static NTSTATUS CreateEventAction(EvalResult eval_result,
+                                    const ClientInfo& client_info,
+                                    const base::string16 &event_name,
+                                    uint32 event_type,
+                                    uint32 initial_state,
+                                    HANDLE *handle);
+  static NTSTATUS OpenEventAction(EvalResult eval_result,
+                                  const ClientInfo& client_info,
+                                  const base::string16 &event_name,
+                                  uint32 desired_access,
+                                  HANDLE *handle);
 };
 
 }  // namespace sandbox
 
 #endif  // SANDBOX_SRC_SYNC_POLICY_H__