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

net/http/http_stream_factory.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_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_H_
 
 #include <list>
 #include <string>
 #include <vector>
 
 #include "base/memory/ref_counted.h"
 #include "base/string16.h"
 #include "net/base/completion_callback.h"
 #include "net/base/load_states.h"
 #include "net/base/net_export.h"
 
 class GURL;
 
 namespace net {
 
+class AuthCredentials;
 class BoundNetLog;
 class HostMappingRules;
 class HostPortPair;
 class HttpAuthController;
 class HttpNetworkSession;
 class HttpPipelinedHost;
 class HttpResponseInfo;
 class HttpServerProperties;
 class HttpStream;
 class ProxyInfo;
@@ skipping 93 matching lines @@
         HttpStream* stream) = 0;
   };
 
   virtual ~HttpStreamRequest() {}
 
   // When a HttpStream creation process is stalled due to necessity
   // of Proxy authentication credentials, the delegate OnNeedsProxyAuth
   // will have been called.  It now becomes the delegate's responsibility
   // to collect the necessary credentials, and then call this method to
   // resume the HttpStream creation process.
-  virtual int RestartTunnelWithProxyAuth(const string16& username,
-                                         const string16& password) = 0;
+  virtual int RestartTunnelWithProxyAuth(
+      const AuthCredentials& credentials) = 0;
 
   // Returns the LoadState for the request.
   virtual LoadState GetLoadState() const = 0;
 
   // Returns true if TLS/NPN was negotiated for this stream.
   virtual bool was_npn_negotiated() const = 0;
 
   // Returns true if this stream is being fetched over SPDY.
   virtual bool using_spdy() const = 0;
 };
@@ skipping 113 matching lines @@
   static std::list<HostPortPair>* forced_spdy_exclusions_;
   static bool ignore_certificate_errors_;
   static bool http_pipelining_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactory);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_H_