Autofill: Refactoring to support fetching password after a username is selected

components/autofill/core/browser/password_autofill_manager.cc

-// Copyright 2013 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 "base/logging.h"
-#include "components/autofill/core/browser/autofill_driver.h"
-#include "components/autofill/core/browser/password_autofill_manager.h"
-#include "ui/events/keycodes/keyboard_codes.h"
-
-namespace autofill {
-
-////////////////////////////////////////////////////////////////////////////////
-// PasswordAutofillManager, public:
-
-PasswordAutofillManager::PasswordAutofillManager(
-    AutofillDriver* autofill_driver) : autofill_driver_(autofill_driver) {
-  DCHECK(autofill_driver);
-}
-
-PasswordAutofillManager::~PasswordAutofillManager() {
-}
-
-bool PasswordAutofillManager::DidAcceptAutofillSuggestion(
-    const FormFieldData& field,
-    const base::string16& username) {
-  PasswordFormFillData password;
-  if (!FindLoginInfo(field, &password))
-    return false;
-
-  if (WillFillUserNameAndPassword(username, password)) {
-    autofill_driver_->RendererShouldAcceptPasswordAutofillSuggestion(username);
-    return true;
-  }
-
-  return false;
-}
-
-void PasswordAutofillManager::AddPasswordFormMapping(
-    const FormFieldData& username_element,
-    const PasswordFormFillData& password) {
-  login_to_password_info_[username_element] = password;
-}
-
-void PasswordAutofillManager::Reset() {
-  login_to_password_info_.clear();
-}
-
-////////////////////////////////////////////////////////////////////////////////
-// PasswordAutofillManager, private:
-
-bool PasswordAutofillManager::WillFillUserNameAndPassword(
-    const base::string16& current_username,
-    const PasswordFormFillData& fill_data) {
-  // Look for any suitable matches to current field text.
-  if (fill_data.basic_data.fields[0].value == current_username)
-    return true;
-
-  // Scan additional logins for a match.
-   for (PasswordFormFillData::LoginCollection::const_iterator iter =
-           fill_data.additional_logins.begin();
-       iter != fill_data.additional_logins.end(); ++iter) {
-    if (iter->first == current_username)
-      return true;
-  }
-
-  for (PasswordFormFillData::UsernamesCollection::const_iterator usernames_iter
-           = fill_data.other_possible_usernames.begin();
-       usernames_iter != fill_data.other_possible_usernames.end();
-       ++usernames_iter) {
-    for (size_t i = 0; i < usernames_iter->second.size(); ++i) {
-      if (usernames_iter->second[i] == current_username)
-        return true;
-    }
-  }
-
-  return false;
-}
-
-bool PasswordAutofillManager::FindLoginInfo(
-    const FormFieldData& field,
-    PasswordFormFillData* found_password) {
-  LoginToPasswordInfoMap::iterator iter = login_to_password_info_.find(field);
-  if (iter == login_to_password_info_.end())
-    return false;
-
-  *found_password = iter->second;
-  return true;
-}
-
-}  // namespace autofill