sandbox/win: Fix warnings found by clang chromium-style plugin on Windows.

sandbox/win/src/handle_closer.cc

 // Copyright (c) 2011 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/handle_closer.h"
 
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/win/windows_version.h"
 #include "sandbox/win/src/interceptors.h"
@@ skipping 14 matching lines @@
   return reinterpret_cast<T*>(RoundUpToWordSize(reinterpret_cast<size_t>(v)));
 }
 
 }  // namespace
 
 namespace sandbox {
 
 // Memory buffer mapped from the parent, with the list of handles.
 SANDBOX_INTERCEPT HandleCloserInfo* g_handles_to_close;
 
-HandleCloser::HandleCloser() {}
+HandleCloser::HandleCloser() {
+}
+
+HandleCloser::~HandleCloser() {
+}
 
 ResultCode HandleCloser::AddHandle(const base::char16* handle_type,
                                    const base::char16* handle_name) {
   if (!handle_type)
     return SBOX_ERROR_BAD_PARAMS;
 
   base::string16 resolved_name;
   if (handle_name) {
     resolved_name = handle_name;
     if (handle_type == base::string16(L"Key"))
@@ skipping 135 matching lines @@
 
   if (NT_SUCCESS(result) && name->Buffer && name->Length)
     handle_name->assign(name->Buffer, name->Length / sizeof(wchar_t));
   else
     handle_name->clear();
 
   return NT_SUCCESS(result);
 }
 
 }  // namespace sandbox