Geolocation cleanup: corrects uses of content::AccessTokenStore* and net::URLRequestContextGetter*

content/browser/geolocation/network_location_request.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 CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
 #define CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_
 
 #include <memory>
 
 #include "base/callback.h"
@@ skipping 23 matching lines @@
   // Called when a new geo position is available. The second argument indicates
   // whether there was a server error or not. It is true when there was a
   // server or network error - either no response or a 500 error code.
   typedef base::Callback<void(const Geoposition& /* position */,
                               bool /* server_error */,
                               const base::string16& /* access_token */,
                               const WifiData& /* wifi_data */)>
       LocationResponseCallback;
 
   // |url| is the server address to which the request wil be sent.
-  NetworkLocationRequest(net::URLRequestContextGetter* context,
-                         const GURL& url,
-                         LocationResponseCallback callback);
+  NetworkLocationRequest(
+      const scoped_refptr<net::URLRequestContextGetter>& context,
+      const GURL& url,
+      LocationResponseCallback callback);
   ~NetworkLocationRequest() override;
 
   // Makes a new request. Returns true if the new request was successfully
   // started. In all cases, any currently pending request will be canceled.
   bool MakeRequest(const base::string16& access_token,
                    const WifiData& wifi_data,
                    const base::Time& wifi_timestamp);
 
   bool is_request_pending() const { return url_fetcher_ != NULL; }
   const GURL& url() const { return url_; }
 
  private:
   // net::URLFetcherDelegate
   void OnURLFetchComplete(const net::URLFetcher* source) override;
 
-  scoped_refptr<net::URLRequestContextGetter> url_context_;
-  LocationResponseCallback location_response_callback_;
+  const scoped_refptr<net::URLRequestContextGetter> url_context_;
+  const LocationResponseCallback location_response_callback_;
   const GURL url_;
   std::unique_ptr<net::URLFetcher> url_fetcher_;
 
   // Keep a copy of the data sent in the request, so we can refer back to it
   // when the response arrives.
   WifiData wifi_data_;
   base::Time wifi_timestamp_;
 
   // The start time for the request.
   base::TimeTicks request_start_time_;
 
   DISALLOW_COPY_AND_ASSIGN(NetworkLocationRequest);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_GEOLOCATION_NETWORK_LOCATION_REQUEST_H_