Revert 197960 "[chromeos] Remove dependencies of StatisticsProvi..."

trunk/src/chromeos/system/name_value_pairs_parser.h

-// Copyright (c) 2012 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 CHROMEOS_SYSTEM_NAME_VALUE_PAIRS_PARSER_H_
-#define CHROMEOS_SYSTEM_NAME_VALUE_PAIRS_PARSER_H_
-
-#include <map>
-#include <string>
-
-#include "base/basictypes.h"
-#include "chromeos/chromeos_export.h"
-
-namespace base {
-class FilePath;
-}
-
-namespace chromeos {
-namespace system {
-
-// The parser is used to get machine info as name-value pairs. Defined
-// here to be accessible by tests.
-class CHROMEOS_EXPORT NameValuePairsParser {
- public:
-  typedef std::map<std::string, std::string> NameValueMap;
-
-  // The obtained info will be written into the given map.
-  explicit NameValuePairsParser(NameValueMap* map);
-
-  void AddNameValuePair(const std::string& key, const std::string& value);
-
-  // Executes tool and inserts (key, <output>) into map_.
-  // The program name (argv[0]) should be an absolute path. The function
-  // checks if the program exists before executing it as some programs
-  // don't exist on Linux desktop; returns false in that case.
-  bool GetSingleValueFromTool(int argc, const char* argv[],
-                              const std::string& key);
-
-  // Parses name-value pairs from the file.
-  // Returns false if there was any error in the file. Valid pairs will still be
-  // added to the map.
-  bool GetNameValuePairsFromFile(const base::FilePath& file_path,
-                                 const std::string& eq,
-                                 const std::string& delim);
-
-  // These will parse strings with output in the format:
-  // <key><EQ><value><DELIM>[<key><EQ><value>][...]
-  // e.g. ParseNameValuePairs("key1=value1 key2=value2", "=", " ")
-  // Returns false if there was any error in in_string. Valid pairs will still
-  // be added to the map.
-  bool ParseNameValuePairs(const std::string& in_string,
-                           const std::string& eq,
-                           const std::string& delim);
-
-  // This version allows for values which end with a comment
-  // beginning with comment_delim.
-  // e.g. "key2=value2 # Explanation of value\n"
-  // Returns false if there was any error in in_string. Valid pairs will still
-  // be added to the map.
-  bool ParseNameValuePairsWithComments(const std::string& in_string,
-                                       const std::string& eq,
-                                       const std::string& delim,
-                                       const std::string& comment_delim);
-
-  // Same as ParseNameValuePairsWithComments(), but uses the output of the given
-  // tool as the input to parse.
-  bool ParseNameValuePairsFromTool(
-      int argc,
-      const char* argv[],
-      const std::string& eq,
-      const std::string& delim,
-      const std::string& comment_delim);
-
- private:
-  NameValueMap* map_;
-
-  DISALLOW_COPY_AND_ASSIGN(NameValuePairsParser);
-};
-
-}  // namespace system
-}  // namespace chromeos
-
-#endif  // CHROMEOS_SYSTEM_NAME_VALUE_PAIRS_PARSER_H_