Allow dynamic updating of authentication policies

chrome/browser/ui/login/login_prompt.cc

 // 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.
 
 #include "chrome/browser/ui/login/login_prompt.h"
 
 #include <string>
 #include <vector>
 
 #include "base/bind.h"
@@ skipping 51 matching lines @@
 // net::URLRequest.
 void ResetLoginHandlerForRequest(net::URLRequest* request) {
   ResourceDispatcherHost::Get()->ClearLoginDelegateForRequest(request);
 }
 
 // Helper to create a PasswordForm for PasswordManager to start looking for
 // saved credentials.
 PasswordForm MakeInputForPasswordManager(const GURL& request_url,
                                          net::AuthChallengeInfo* auth_info) {
   PasswordForm dialog_form;
-  if (base::LowerCaseEqualsASCII(auth_info->scheme, "basic")) {
+  if (base::LowerCaseEqualsASCII(auth_info->scheme, net::kBasicAuthScheme)) {
     dialog_form.scheme = PasswordForm::SCHEME_BASIC;
-  } else if (base::LowerCaseEqualsASCII(auth_info->scheme, "digest")) {
+  } else if (base::LowerCaseEqualsASCII(auth_info->scheme,
+                                        net::kDigestAuthScheme)) {
     dialog_form.scheme = PasswordForm::SCHEME_DIGEST;
   } else {
     dialog_form.scheme = PasswordForm::SCHEME_OTHER;
   }
   std::string host_and_port(auth_info->challenger.ToString());
   if (auth_info->is_proxy) {
     std::string origin = host_and_port;
     // We don't expect this to already start with http:// or https://.
     DCHECK(origin.find("http://") != 0 && origin.find("https://") != 0);
     origin = std::string("http://") + origin;
@@ skipping 535 matching lines @@
     signon_realm = auth_info.challenger.ToString();
     signon_realm.append("/");
   } else {
     // Take scheme, host, and port from the url.
     signon_realm = url.GetOrigin().spec();
     // This ends with a "/".
   }
   signon_realm.append(auth_info.realm);
   return signon_realm;
 }