win: Lower integrity level of connection pipe

util/win/scoped_local_alloc.h

Index: util/win/scoped_local_alloc.h
diff --git a/util/win/scoped_local_alloc.h b/util/win/scoped_local_alloc.h
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+++ b/util/win/scoped_local_alloc.h
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+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef CRASHPAD_UTIL_WIN_SCOPED_LOCAL_ALLOC_H_
+#define CRASHPAD_UTIL_WIN_SCOPED_LOCAL_ALLOC_H_
+
+#include <windows.h>
+
+#include "base/scoped_generic.h"
+
+namespace crashpad {
+
+struct LocalAllocTraits {
+  static HLOCAL InvalidValue() { return nullptr; }
+  static void Free(HLOCAL mem);
+};
+
+using ScopedLocalAlloc = base::ScopedGeneric<HLOCAL, LocalAllocTraits>;
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_WIN_SCOPED_LOCAL_ALLOC_H_