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// 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_BROWSER_DOM_UI_DOM_UI_UTIL_H_
#define CHROME_BROWSER_DOM_UI_DOM_UI_UTIL_H_
#pragma once
#include <string>
class Value;
namespace dom_ui_util {
// Convenience routine to get the response string from an argument
// list. Typically used when supporting a DOMUI and getting calls
// from the hosted code. Content must be a ListValue with at least
// one entry in it, and that first entry must be a string, which is
// returned. The parameter is a Value for convenience. Returns an
// empty string on error or if the parameter is not a ListValue.
std::string GetJsonResponseFromFirstArgumentInList(const Value* content);
// Convenience routine to get one of the response strings from an
// argument list. content must be a ListValue, with at least
// (list_index+1) entries in it. list_index is the 0-based index of
// the entry to pull from that list, and that entry must be a string,
// which is returned. The parameter is a Value for convenience.
// Returns an empty string on error or if the parameter is not a
// ListValue.
std::string GetJsonResponseFromArgumentList(const Value* content,
size_t list_index);
} // end of namespace
#endif // CHROME_BROWSER_DOM_UI_DOM_UI_UTIL_H_
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