win: Lower integrity level of connection pipe

util/win/scoped_local_free.h

Index: util/win/scoped_local_free.h
diff --git a/util/win/scoped_local_free.h b/util/win/scoped_local_free.h
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index 0000000000000000000000000000000000000000..4c285c26f1a6471be8d82dd624e9b91299bc7769
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+++ b/util/win/scoped_local_free.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_FREE_H_
+#define CRASHPAD_UTIL_WIN_SCOPED_LOCAL_FREE_H_
+
+namespace crashpad {
+
+struct LocalFreeTraits {
+  static HLOCAL InvalidValue() { return nullptr; }
+  static void Free(HLOCAL mem) {
+    if (LocalFree(mem) != nullptr)
+      PLOG(ERROR) << "LocalFree";
+  }
+};
+
+using ScopedLocalFree = base::ScopedGeneric<HLOCAL, LocalFreeTraits>;
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_WIN_SCOPED_LOCAL_FREE_H_