Set linux distro to CHROMEOS_RELEASE_DESCRIPTION on ChromeOS

chrome/browser/policy/device_status_collector.cc

 // 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.
 
 #include "chrome/browser/policy/device_status_collector.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/location.h"
 #include "base/logging.h"
@@ skipping 350 matching lines @@
     GetVersionInfo(request);
 
   if (report_boot_mode_)
     GetBootMode(request);
 
   if (report_location_)
     GetLocation(request);
 }
 
 void DeviceStatusCollector::OnOSVersion(VersionLoader::Handle handle,
-                                        std::string version) {
+                                        const std::string& version) {
   os_version_ = version;
 }
 
 void DeviceStatusCollector::OnOSFirmware(VersionLoader::Handle handle,
-                                         std::string version) {
+                                         const std::string& version) {
   firmware_version_ = version;
 }
 
 void DeviceStatusCollector::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
   if (type == chrome::NOTIFICATION_SYSTEM_SETTING_CHANGED)
     UpdateReportingSettings();
   else
@@ skipping 49 matching lines @@
     location.SetDouble(kSpeed, position.speed);
     location.SetString(kTimestamp,
         base::Int64ToString(position.timestamp.ToInternalValue()));
     local_state_->Set(prefs::kDeviceLocation, location);
   }
 
   ScheduleGeolocationUpdateRequest();
 }
 
 }  // namespace policy