cros: Move LockWindow from chrome to ash

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

 // Copyright 2014 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/screen_locker.h"
 
 #include <string>
 #include <vector>
 
 #include "ash/login/ui/lock_screen.h"
@@ skipping 224 matching lines @@
 
   authenticator_ = UserSessionManager::GetInstance()->CreateAuthenticator(this);
   extended_authenticator_ = ExtendedAuthenticator::Create(this);
   if (IsUsingMdLogin()) {
     // Create delegate that will eventually call into the views-based lock
     // screen via mojo.
     delegate_ = new StubDelegate();
     owns_delegate_ = true;
 
     // Create and display lock screen.
-    // TODO(jdufualt): LockWindow should live in ash.
     // TODO(jdufault): Calling ash::ShowLockScreenInWidget should be a mojo
     // call. We should only set the session state to locked after the mojo call
     // has completed.
-    LockWindow* lock_window = new LockWindow();
-    lock_window->SetBounds(
-        display::Screen::GetScreen()->GetPrimaryDisplay().bounds());
-    ash::ShowLockScreenInWidget(lock_window);
-    session_manager::SessionManager::Get()->SetSessionState(
-        session_manager::SessionState::LOCKED);
+    if (ash::ShowLockScreen()) {
+      session_manager::SessionManager::Get()->SetSessionState(
+          session_manager::SessionState::LOCKED);
+    }
   } else {
     web_ui_.reset(new WebUIScreenLocker(this));
     delegate_ = web_ui_.get();
     owns_delegate_ = false;
     web_ui_->LockScreen();
 
     // Ownership of |icon_image_source| is passed.
     screenlock_icon_provider_ = base::MakeUnique<ScreenlockIconProvider>();
     ScreenlockIconSource* screenlock_icon_source =
         new ScreenlockIconSource(screenlock_icon_provider_->AsWeakPtr());
@@ skipping 454 matching lines @@
     }
   }
 
   if (auth_status_consumer_) {
     AuthFailure failure(AuthFailure::UNLOCK_FAILED);
     auth_status_consumer_->OnAuthFailure(failure);
   }
 }
 
 }  // namespace chromeos