Adds IDBKeyPath parser / extractor, and provides a mechanism to call it sandboxed.

chrome/common/utility_messages.h

 // Copyright (c) 2010 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 CHROME_COMMON_UTILITY_MESSAGES_H_
 #define CHROME_COMMON_UTILITY_MESSAGES_H_
 #pragma once
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/file_path.h"
 #include "base/values.h"
 #include "chrome/common/common_param_traits.h"
 #include "chrome/common/extensions/update_manifest.h"
+#include "chrome/common/indexed_db_param_traits.h"
 #include "ipc/ipc_message_utils.h"
 
 namespace IPC {
 
 // Traits for UpdateManifest::Result.
 template <>
 struct ParamTraits<UpdateManifest::Result> {
   typedef UpdateManifest::Result param_type;
   static void Write(Message* m, const param_type& p) {
     WriteParam(m, p.extension_id);
@@ skipping 43 matching lines @@
     l->append(L")");
   }
 };
 
 }  // namespace IPC
 
 #define MESSAGES_INTERNAL_FILE "chrome/common/utility_messages_internal.h"
 #include "ipc/ipc_message_macros.h"
 
 #endif  // CHROME_COMMON_UTILITY_MESSAGES_H_