[In progress] Monitor suspend code

chrome/browser/chromeos/power/suspend_observer.cc

 // 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.
 
-#include "chrome/browser/chromeos/power/screen_dimming_observer.h"
-
-#include "ash/shell.h"
+#include "chrome/browser/chromeos/power/suspend_observer.h"
+#include "chrome/browser/extensions/system/system_api.h"
 #include "chromeos/dbus/dbus_thread_manager.h"
+#include "chromeos/display/output_configurator.h"
 
 namespace chromeos {
 
-ScreenDimmingObserver::ScreenDimmingObserver() {
+SuspendObserver::SuspendObserver() {
   DBusThreadManager::Get()->GetPowerManagerClient()->AddObserver(this);
 }
 
-ScreenDimmingObserver::~ScreenDimmingObserver() {
+SuspendObserver::~SuspendObserver() {
   DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver(this);
 }
 
-void ScreenDimmingObserver::ScreenDimmingRequested(ScreenDimmingState state) {
-  ash::Shell::GetInstance()->SetDimming(
-      state == PowerManagerClient::Observer::SCREEN_DIMMING_IDLE);
+void SuspendObserver::SuspendImminent() {
+  ash::Shell::GetInstance()->output_configurator()->SuspendDisplays();
 }
 
 }  // namespace chromeos