Use AuthCredentials throughout the network stack instead of username/password.

net/http/http_stream_factory_impl_job.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 NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
@@ skipping 32 matching lines @@
   ~Job();
 
   // Start initiates the process of creating a new HttpStream. |request| will be
   // notified upon completion if the Job has not been Orphan()'d.
   void Start(Request* request);
 
   // Preconnect will attempt to request |num_streams| sockets from the
   // appropriate ClientSocketPool.
   int Preconnect(int num_streams);
 
-  int RestartTunnelWithProxyAuth(const string16& username,
-                                 const string16& password);
+  int RestartTunnelWithProxyAuth(const AuthCredentials& credentials);
   LoadState GetLoadState() const;
 
   // Marks this Job as the "alternate" job, from Alternate-Protocol. Tracks the
   // original url so we can mark the Alternate-Protocol as broken if
   // we fail to connect.
   void MarkAsAlternate(const GURL& original_url);
 
   // Tells |this| to wait for |job| to resume it.
   void WaitFor(Job* job);
 
@@ skipping 216 matching lines @@
   bool existing_available_pipeline_;
 
   base::WeakPtrFactory<Job> ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Job);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_IMPL_JOB_H_