Fix the proxy host and port string to start with http:// if it does not already.

chrome/browser/login_prompt.cc

 // Copyright (c) 2009 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/login_prompt.h"
 
 #include "app/l10n_util.h"
 #include "base/command_line.h"
 #include "base/lock.h"
 #include "base/message_loop.h"
@@ skipping 95 matching lines @@
       std::vector<PasswordForm>* password_manager_input) {
     PasswordForm dialog_form;
     if (LowerCaseEqualsASCII(auth_info_->scheme, "basic")) {
       dialog_form.scheme = PasswordForm::SCHEME_BASIC;
     } else if (LowerCaseEqualsASCII(auth_info_->scheme, "digest")) {
       dialog_form.scheme = PasswordForm::SCHEME_DIGEST;
     } else {
       dialog_form.scheme = PasswordForm::SCHEME_OTHER;
     }
     if (auth_info_->is_proxy) {
-      dialog_form.origin = GURL(WideToASCII(auth_info_->host_and_port));
+      std::string origin = WideToASCII(auth_info_->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;
+      dialog_form.origin = GURL(origin);
     } else {
       dialog_form.origin = origin_url;
     }
     dialog_form.signon_realm = GetSignonRealm(dialog_form.origin, *auth_info_);
     password_manager_input->push_back(dialog_form);
     // Set the password form for the handler (by copy).
     handler_->SetPasswordForm(dialog_form);
   }
 
   // Info about who/where/what is asking for authentication.
   scoped_refptr<net::AuthChallengeInfo> auth_info_;
 
   // Where to send the authentication when obtained.
   // This is owned by the ResourceDispatcherHost that invoked us.
   LoginHandler* handler_;
 
   DISALLOW_EVIL_CONSTRUCTORS(LoginDialogTask);
 };
 
 // ----------------------------------------------------------------------------
 // Public API
 
 LoginHandler* CreateLoginPrompt(net::AuthChallengeInfo* auth_info,
                                 URLRequest* request,
                                 MessageLoop* ui_loop) {
   LoginHandler* handler = LoginHandler::Create(request, ui_loop);
   ui_loop->PostTask(FROM_HERE, new LoginDialogTask(auth_info, handler));
   return handler;
 }