Fix the no password save issue for ajax login

content/public/renderer/document_state.h

 // 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.
 
 #ifndef CONTENT_PUBLIC_RENDERER_DOCUMENT_STATE_H_
 #define CONTENT_PUBLIC_RENDERER_DOCUMENT_STATE_H_
 
 #include <string>
 
 #include "base/logging.h"
@@ skipping 151 matching lines @@
 
   const GURL& searchable_form_url() const { return searchable_form_url_; }
   void set_searchable_form_url(const GURL& url) { searchable_form_url_ = url; }
   const std::string& searchable_form_encoding() const {
     return searchable_form_encoding_;
   }
   void set_searchable_form_encoding(const std::string& encoding) {
     searchable_form_encoding_ = encoding;
   }
 
+  // If set, contains the PasswordForm that we believe triggered the current
+  // navigation (there is some ambiguity in the case of javascript initiated
+  // navigations). This information is used by the PasswordManager to determine
+  // if the user should be prompted to save their password.
+  //
+  // Note that setting this field doesn't affect where the data is sent or what
+  // origin we associate it with, only whether we prompt the user to save it.
+  // That is, a false positive is a usability issue (e.g. may try to save a
+  // mis-typed password) not a security issue.
   PasswordForm* password_form_data() const {
     return password_form_data_.get();
   }
   void set_password_form_data(scoped_ptr<PasswordForm> data);
 
   const std::string& security_info() const { return security_info_; }
   void set_security_info(const std::string& security_info) {
     security_info_ = security_info;
   }
 
@@ skipping 123 matching lines @@
   scoped_ptr<webkit_glue::AltErrorPageResourceFetcher> alt_error_page_fetcher_;
 
   scoped_ptr<NavigationState> navigation_state_;
 
   bool can_load_local_resources_;
 };
 
 #endif  // CONTENT_PUBLIC_RENDERER_DOCUMENT_STATE_H_
 
 }  // namespace content