Adding mojo calls for easy unlock service

chrome/browser/chromeos/login/lock/views_screen_locker.cc

+// Copyright 2017 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/chromeos/login/lock/views_screen_locker.h"
+
+#include "base/metrics/histogram_macros.h"
+#include "chrome/browser/chromeos/login/screens/chrome_user_selection_screen.h"
+#include "chrome/browser/chromeos/login/user_selection_screen_proxy.h"
+
+namespace chromeos {
+
+namespace {
+constexpr char kLockDisplay[] = "lock";
+}  // namespace
+
+ViewsScreenLocker::ViewsScreenLocker(ScreenLocker* screen_locker)
+    : screen_locker_(screen_locker), weak_factory_(this) {
+  LockScreenClient::Get()->SetDelegate(this);
+  user_selection_screen_proxy_ = base::MakeUnique<UserSelectionScreenProxy>();
+  user_selection_screen_ =
+      base::MakeUnique<ChromeUserSelectionScreen>(kLockDisplay);
+  user_selection_screen_->SetView(user_selection_screen_proxy_.get());
+}
+
+ViewsScreenLocker::~ViewsScreenLocker() {
+  LockScreenClient::Get()->SetDelegate(nullptr);
+}
+
+void ViewsScreenLocker::SetPasswordInputEnabled(bool enabled) {
+  NOTIMPLEMENTED();
+}
+
+void ViewsScreenLocker::ShowErrorMessage(
+    int error_msg_id,
+    HelpAppLauncher::HelpTopic help_topic_id) {
+  // TODO(xiaoyinh): Complete the implementation here.
+  LockScreenClient::Get()->ShowErrorMessage(0 /* login_attempts */,
+                                            std::string(), std::string(),
+                                            static_cast<int>(help_topic_id));
+}
+
+void ViewsScreenLocker::ClearErrors() {
+  LockScreenClient::Get()->ClearErrors();
+}
+
+void ViewsScreenLocker::AnimateAuthenticationSuccess() {
+  NOTIMPLEMENTED();
+}
+
+void ViewsScreenLocker::OnLockWebUIReady() {
+  NOTIMPLEMENTED();
+}
+
+void ViewsScreenLocker::OnLockBackgroundDisplayed() {
+  NOTIMPLEMENTED();
+}
+
+void ViewsScreenLocker::OnHeaderBarVisible() {
+  NOTIMPLEMENTED();
+}
+
+void ViewsScreenLocker::OnAshLockAnimationFinished() {
+  NOTIMPLEMENTED();
+}
+
+void ViewsScreenLocker::SetFingerprintState(
+    const AccountId& account_id,
+    ScreenLocker::FingerprintState state) {
+  NOTIMPLEMENTED();
+}
+
+content::WebContents* ViewsScreenLocker::GetWebContents() {
+  return nullptr;
+}
+
+void ViewsScreenLocker::Init() {
+  lock_time_ = base::TimeTicks::Now();
+  user_selection_screen_->Init(screen_locker_->users());
+  std::unique_ptr<base::ListValue> users_list =

[xiyuan, 2017/06/05 17:30:40]

nit: get rid of |users_list| and use it in-place in the call below.

[xiaoyinh(OOO Sep 11-29), 2017/06/06 16:36:05]

Done.

+      user_selection_screen_->PrepareUserList();
+  LockScreenClient::Get()->LoadUsers(std::move(users_list),

[xiyuan, 2017/06/05 17:30:40]

nit: #include <utility> for std::move

[xiaoyinh(OOO Sep 11-29), 2017/06/06 16:36:05]

Thanks for your comment! This is no longer needed after I incorporate the above
comment.

+                                     false /* show_guests */);
+}
+
+void ViewsScreenLocker::OnLockScreenReady() {
+  user_selection_screen_->InitEasyUnlock();
+  UMA_HISTOGRAM_TIMES("LockScreen.LockReady",
+                      base::TimeTicks::Now() - lock_time_);
+  screen_locker_->ScreenLockReady();
+}
+
+void ViewsScreenLocker::HandleAttemptUnlock(const AccountId& account_id) {
+  user_selection_screen_->AttemptEasyUnlock(account_id);
+}
+
+void ViewsScreenLocker::HandleHardlockPod(const AccountId& account_id) {
+  user_selection_screen_->HardLockPod(account_id);
+}
+
+void ViewsScreenLocker::HandleRecordClickOnLockIcon(
+    const AccountId& account_id) {
+  user_selection_screen_->RecordClickOnLockIcon(account_id);
+}
+
+}  // namespace chromeos