Parse /etc/lsb-release only once on ChromeOS

chrome/browser/chromeos/system_logs/lsb_release_log_source.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 CHROME_BROWSER_CHROMEOS_SYSTEM_LOGS_LSB_RELEASE_LOG_SOURCE_H_
 #define CHROME_BROWSER_CHROMEOS_SYSTEM_LOGS_LSB_RELEASE_LOG_SOURCE_H_
 
 #include "chrome/browser/chromeos/system_logs/system_logs_fetcher_base.h"
 
 namespace chromeos {
 
 // Fetches release information form /etc/lsb-release file.
 class LsbReleaseLogSource : public SystemLogsSource {
  public:
   LsbReleaseLogSource() {}
   virtual ~LsbReleaseLogSource() {}
 
   // SystemLogsSource override.
   virtual void Fetch(const SysLogsSourceCallback& callback) OVERRIDE;
 
-  // For testing. Parses a key=value pairs from a string. There can be only one
-  // pair per line and the value must confine to a single line.
-  // Example:
-  // foo = 1
-  // bar = 2
-  // Note: it automatically strips whitespaces from the front and back of values
-  // and keys.
-  static void ParseLSBRelease(const std::string& lsb_data,
-                              SystemLogsResponse* response);
-
  private:
-  // Gets the info from the /etc/lsb-release and parses it
-  static void ReadLSBRelease(SystemLogsResponse* response);
-
   DISALLOW_COPY_AND_ASSIGN(LsbReleaseLogSource);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_SYSTEM_LOGS_LSB_RELEASE_LOG_SOURCE_H_