[net/http auth] Make HttpAuthHandler challenge handling asynchronous.

net/http/http_auth_handler_ntlm.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_AUTH_HANDLER_NTLM_H_
 #define NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_
 
 #include "build/build_config.h"
 
 // This contains the portable and the SSPI implementations for NTLM.
@@ skipping 28 matching lines @@
   class Factory : public HttpAuthHandlerFactory {
    public:
     Factory();
     ~Factory() override;
 
     // HttpAuthHandlerFactory
     scoped_ptr<HttpAuthHandler> CreateAuthHandlerForScheme(
         const std::string& scheme) override;
     scoped_ptr<HttpAuthHandler> CreateAndInitPreemptiveAuthHandler(
         HttpAuthCache::Entry* cache_entry,
-        const HttpAuthChallengeTokenizer& tokenizer,
         HttpAuth::Target target,
         const BoundNetLog& net_log) override;
 #if defined(NTLM_SSPI)
     // Set the SSPILibrary to use. Typically the only callers which need to use
     // this are unit tests which pass in a mocked-out version of the SSPI
     // library.  After the call |sspi_library| will be owned by this Factory and
     // will be destroyed when the Factory is destroyed.
     void set_sspi_library(SSPILibrary* sspi_library) {
       sspi_library_.reset(sspi_library);
     }
@@ skipping 49 matching lines @@
   bool AllowsDefaultCredentials() override;
   HttpAuth::AuthorizationResult HandleAnotherChallenge(
       const HttpAuthChallengeTokenizer& challenge) override;
 
  protected:
   // This function acquires a credentials handle in the SSPI implementation.
   // It does nothing in the portable implementation.
   int InitializeBeforeFirstChallenge();
 
   // HttpAuthHandler
-  int Init(const HttpAuthChallengeTokenizer& tok) override;
+  int InitializeFromChallengeInternal(
+      const HttpAuthChallengeTokenizer& challenge,
+      const HttpResponseInfo& response_with_challenge,
+      const CompletionCallback& callback) override;
+  int InitializeFromCacheEntryInternal(
+      HttpAuthCache::Entry* cache_entry) override;
   int GenerateAuthTokenImpl(const AuthCredentials* credentials,
                             const HttpRequestInfo& request,
                             const CompletionCallback& callback,
                             std::string* auth_token) override;
 
  private:
 #if defined(NTLM_PORTABLE)
   // For unit tests to override the GenerateRandom and GetHostName functions.
   // Returns the old function.
   static GenerateRandomProc SetGenerateRandomProc(GenerateRandomProc proc);
@@ skipping 32 matching lines @@
   std::string auth_data_;
 
 #if defined(NTLM_SSPI)
   URLSecurityManager* url_security_manager_;
 #endif
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_AUTH_HANDLER_NTLM_H_