chromeos: Make dbus::MessageReader memory ownership explicit

content/browser/geolocation/wifi_data_provider_linux.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.
 
 // Provides wifi scan API binding for suitable for typical linux distributions.
 // Currently, only the NetworkManager API is used, accessed via D-Bus (in turn
 // accessed via the GLib wrapper).
 
 #include "content/browser/geolocation/wifi_data_provider_linux.h"
 
@@ skipping 228 matching lines @@
       if (!response)
         continue;
       // The response should contain a variant that contains an array of bytes.
       dbus::MessageReader reader(response.get());
       dbus::MessageReader variant_reader(response.get());
       if (!reader.PopVariant(&variant_reader)) {
         LOG(WARNING) << "Unexpected response for " << access_point_path.value()
                      << ": " << response->ToString();
         continue;
       }
-      uint8* ssid_bytes = NULL;
+      const uint8* ssid_bytes = NULL;
       size_t ssid_length = 0;
       if (!variant_reader.PopArrayOfBytes(&ssid_bytes, &ssid_length)) {
         LOG(WARNING) << "Unexpected response for " << access_point_path.value()
                      << ": " << response->ToString();
         continue;
       }
       std::string ssid(ssid_bytes, ssid_bytes + ssid_length);
       access_point_data.ssid = base::UTF8ToUTF16(ssid);
     }
 
@@ skipping 111 matching lines @@
 
 WifiDataProviderCommon::WlanApiInterface*
 WifiDataProviderLinux::NewWlanApiForTesting(dbus::Bus* bus) {
   scoped_ptr<NetworkManagerWlanApi> wlan_api(new NetworkManagerWlanApi);
   if (wlan_api->InitWithBus(bus))
     return wlan_api.release();
   return NULL;
 }
 
 }  // namespace content