Adding mojo calls for several lock screen related operations.

chrome/browser/ui/ash/lock_screen_client.cc

Index: chrome/browser/ui/ash/lock_screen_client.cc
diff --git a/chrome/browser/ui/ash/lock_screen_client.cc b/chrome/browser/ui/ash/lock_screen_client.cc
index d42c00aa39c36764703af8df7340920b7cb08241..736b8e358c16216f04c713c9e9132c30da582e93 100644
--- a/chrome/browser/ui/ash/lock_screen_client.cc
+++ b/chrome/browser/ui/ash/lock_screen_client.cc
@@ -6,6 +6,8 @@
 
 #include "ash/public/interfaces/constants.mojom.h"
 #include "chrome/browser/chromeos/login/lock/screen_locker.h"
+#include "chrome/browser/chromeos/login/reauth_stats.h"
+#include "chrome/browser/chromeos/login/users/wallpaper/wallpaper_manager.h"
 #include "content/public/common/service_manager_connection.h"
 #include "services/service_manager/public/cpp/connector.h"
 
@@ -42,14 +44,10 @@ LockScreenClient* LockScreenClient::Get() {
 void LockScreenClient::AuthenticateUser(const AccountId& account_id,
                                         const std::string& hashed_password,
                                         bool authenticated_by_pin) {
-  // TODO(xiaoyinh): Complete the implementation below.
-  // It should be similar as SigninScreenHandler::HandleAuthenticateUser.
-  chromeos::UserContext user_context(account_id);
-  chromeos::Key key(chromeos::Key::KEY_TYPE_SALTED_SHA256_TOP_HALF,
-                    std::string(), hashed_password);
-  user_context.SetKey(key);
-  user_context.SetIsUsingPin(authenticated_by_pin);
-  chromeos::ScreenLocker::default_screen_locker()->Authenticate(user_context);
+  if (!delegate_)
+    return;
+  delegate_->HandleAuthenticateUser(account_id, hashed_password,
+                                    authenticated_by_pin);
 }
 
 void LockScreenClient::AttemptUnlock(const AccountId& account_id) {
@@ -70,6 +68,32 @@ void LockScreenClient::RecordClickOnLockIcon(const AccountId& account_id) {
   delegate_->HandleRecordClickOnLockIcon(account_id);
 }
 
+void LockScreenClient::FocusPod(const AccountId& account_id) {
+  if (!delegate_)
+    return;
+  delegate_->HandleFocusPod(account_id);
+}
+
+void LockScreenClient::NoPodFocused() {
+  if (!delegate_)
+    return;
+  delegate_->HandleNoPodFocused();
+}
+
+void LockScreenClient::LoadWallpaper(const AccountId& account_id) {
+  chromeos::WallpaperManager::Get()->SetUserWallpaperDelayed(account_id);
+}
+
+void LockScreenClient::SignOutUser() {
+  chromeos::ScreenLocker::default_screen_locker()->Signout();
+}
+
+void LockScreenClient::MaxIncorrectPasswordAttempts(
+    const AccountId& account_id) {
+  RecordReauthReason(account_id,
+                     chromeos::ReauthReason::INCORRECT_PASSWORD_ENTERED);
+}
+
 void LockScreenClient::ShowErrorMessage(int32_t login_attempts,
                                         const std::string& error_text,
                                         const std::string& help_link_text,
@@ -103,6 +127,11 @@ void LockScreenClient::LoadUsers(std::unique_ptr<base::ListValue> users_list,
   lock_screen_->LoadUsers(std::move(users_list), show_guest);
 }
 
+void LockScreenClient::SetPinEnabledForUser(const AccountId& account_id,
+                                            bool is_enabled) {
+  lock_screen_->SetPinEnabledForUser(account_id, is_enabled);
+}
+
 void LockScreenClient::SetDelegate(Delegate* delegate) {
   delegate_ = delegate;
 }