Move GetNameValuePairsFromFile -> NameValuePairsParser, ERROR -> WARNING

chrome/browser/chromeos/system/name_value_pairs_parser.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_SYSTEM_NAME_VALUE_PAIRS_PARSER_H_
 #define CHROME_BROWSER_CHROMEOS_SYSTEM_NAME_VALUE_PAIRS_PARSER_H_
 #pragma once
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 
+class FilePath;
+
 namespace chromeos {
 namespace system {
 
 // The parser is used to get machine info as name-value pairs. Defined
 // here to be accessable by tests.
 class NameValuePairsParser {
  public:
   typedef std::map<std::string, std::string> NameValueMap;
 
   // The obtained info will be written into machine_info.
   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.
   bool GetSingleValueFromTool(int argc, const char* argv[],
                               const std::string& key);
 
+  // Parses name-value pairs from the file.
+  void GetNameValuePairsFromFile(const FilePath& file_path,
+                                 const std::string& eq,
+                                 const std::string& delim);
+
   // This will parse strings with output in the format:
   // <key><EQ><value><DELIM>[<key><EQ><value>][...]
   // e.g. ParseNameValuePairs("key1=value1 key2=value2", "=", " ")
   bool ParseNameValuePairs(const std::string& in_string,
                            const std::string& eq,
                            const std::string& delim);
 
   NameValueMap* map_;
 
   DISALLOW_COPY_AND_ASSIGN(NameValuePairsParser);
 };
 
 }  // namespace system
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_NAME_VALUE_PAIRS_PARSER_H_