win: Add Scoped...Handle

util/win/scoped_handle.h

+// Copyright 2014 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_HANDLE_H_
+#define CRASHPAD_UTIL_WIN_SCOPED_HANDLE_H_
+
+#include <windows.h>
+
+#include "base/scoped_generic.h"
+
+namespace crashpad {
+
+namespace internal {
+
+struct ScopedFileHANDLECloseTraits {
+  static HANDLE InvalidValue() {
+    return INVALID_HANDLE_VALUE;
+  }
+  static void Free(HANDLE handle);
+};
+
+struct ScopedKernelHANDLECloseTraits {
+  static HANDLE InvalidValue() {
+    return nullptr;
+  }
+  static void Free(HANDLE handle);
+};
+
+}  // namespace internal
+
+using ScopedFileHANDLE =
+    base::ScopedGeneric<HANDLE, internal::ScopedFileHANDLECloseTraits>;
+using ScopedKernelHANDLE =
+    base::ScopedGeneric<HANDLE, internal::ScopedKernelHANDLECloseTraits>;
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_UTIL_WIN_SCOPED_HANDLE_H_