Restructure sandbox code to reduce dependencies pulled in by intercept code.

sandbox/win/src/sync_interception.cc

 // 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.
 
 #include "sandbox/win/src/sync_interception.h"
 
 #include "sandbox/win/src/crosscall_client.h"
 #include "sandbox/win/src/ipc_tags.h"
 #include "sandbox/win/src/policy_params.h"
 #include "sandbox/win/src/policy_target.h"
 #include "sandbox/win/src/sandbox_factory.h"
 #include "sandbox/win/src/sandbox_nt_util.h"
+#include "sandbox/win/src/sandbox_utils.h"
 #include "sandbox/win/src/sharedmem_ipc_client.h"
 #include "sandbox/win/src/target_services.h"
 
 namespace sandbox {
 
 ResultCode ProxyCreateEvent(LPCWSTR name,
                             BOOL initial_state,
                             EVENT_TYPE event_type,
                             void* ipc_memory,
                             CrossCallReturn* answer) {
@@ skipping 129 matching lines @@
       status = STATUS_SUCCESS;
     } __except(EXCEPTION_EXECUTE_HANDLER) {
       break;
     }
   } while (false);
 
   return status;
 }
 
 }  // namespace sandbox