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diff --git a/chromium/net/base/auth.h b/chromium/net/base/auth.h
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+++ b/chromium/net/base/auth.h
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+// 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_BASE_AUTH_H__
+#define NET_BASE_AUTH_H__
+
+#include <string>
+
+#include "base/memory/ref_counted.h"
+#include "base/strings/string16.h"
+#include "net/base/host_port_pair.h"
+#include "net/base/net_export.h"
+
+namespace net {
+
+// Holds info about an authentication challenge that we may want to display
+// to the user.
+class NET_EXPORT AuthChallengeInfo :
+    public base::RefCountedThreadSafe<AuthChallengeInfo> {
+ public:
+  AuthChallengeInfo();
+
+  // Determines whether two AuthChallengeInfo's are equivalent.
+  bool Equals(const AuthChallengeInfo& other) const;
+
+  // Whether this came from a server or a proxy.
+  bool is_proxy;
+
+  // The service issuing the challenge.
+  HostPortPair challenger;
+
+  // The authentication scheme used, such as "basic" or "digest". If the
+  // |source| is FTP_SERVER, this is an empty string. The encoding is ASCII.
+  std::string scheme;
+
+  // The realm of the challenge. May be empty. The encoding is UTF-8.
+  std::string realm;
+
+ private:
+  friend class base::RefCountedThreadSafe<AuthChallengeInfo>;
+  ~AuthChallengeInfo();
+};
+
+// Authentication Credentials for an authentication credentials.
+class NET_EXPORT AuthCredentials {
+ public:
+  AuthCredentials();
+  AuthCredentials(const base::string16& username,
+                  const base::string16& password);
+  ~AuthCredentials();
+
+  // Set the |username| and |password|.
+  void Set(const base::string16& username, const base::string16& password);
+
+  // Determines if |this| is equivalent to |other|.
+  bool Equals(const AuthCredentials& other) const;
+
+  // Returns true if all credentials are empty.
+  bool Empty() const;
+
+  // Overwrites the password memory to prevent it from being read if
+  // it's paged out to disk.
+  void Zap();
+
+  const base::string16& username() const { return username_; }
+  const base::string16& password() const { return password_; }
+
+ private:
+  // The username to provide, possibly empty. This should be ASCII only to
+  // minimize compatibility problems, but arbitrary UTF-16 strings are allowed
+  // and will be attempted.
+  base::string16 username_;
+
+  // The password to provide, possibly empty. This should be ASCII only to
+  // minimize compatibility problems, but arbitrary UTF-16 strings are allowed
+  // and will be attempted.
+  base::string16 password_;
+
+  // Intentionally allowing the implicit copy constructor and assignment
+  // operators.
+};
+
+// Authentication structures
+enum AuthState {
+  AUTH_STATE_DONT_NEED_AUTH,
+  AUTH_STATE_NEED_AUTH,
+  AUTH_STATE_HAVE_AUTH,
+  AUTH_STATE_CANCELED
+};
+
+class AuthData : public base::RefCountedThreadSafe<AuthData> {
+ public:
+  AuthState state;  // whether we need, have, or gave up on authentication.
+  AuthCredentials credentials; // The credentials to use for auth.
+
+  // We wouldn't instantiate this class if we didn't need authentication.
+  AuthData();
+
+ private:
+  friend class base::RefCountedThreadSafe<AuthData>;
+  ~AuthData();
+};
+
+}  // namespace net
+
+#endif  // NET_BASE_AUTH_H__