Move CloseHandle hook into base/debug.

base/debug/close_handle_hook_win.h

+// Copyright 2015 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 BASE_DEBUG_CLOSE_HANDLE_HOOK_WIN_H_
+#define BASE_DEBUG_CLOSE_HANDLE_HOOK_WIN_H_
+
+#include "base/base_export.h"
+
+namespace base {
+namespace debug {
+
+// Installs the hooks required to debug use of improper handles.
+BASE_EXPORT void InstallHandleHooks();
+
+// Removes the hooks installed by InstallHandleHooks().
+BASE_EXPORT void RemoveHandleHooks();
+
+}  // namespace debug
+}  // namespace base
+
+#endif  // BASE_DEBUG_CLOSE_HANDLE_HOOK_WIN_H_