chromeos: Combine TrayAudio and TrayAudioChromeOs classes

ash/common/system/chromeos/audio/tray_audio_chromeos.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 "ash/common/system/chromeos/audio/tray_audio_chromeos.h"
-
-#include "ash/common/system/audio/volume_view.h"
-#include "ash/common/system/chromeos/audio/audio_detailed_view.h"
-#include "ash/common/system/chromeos/audio/tray_audio_delegate_chromeos.h"
-#include "ash/common/wm_shell.h"
-#include "chromeos/dbus/dbus_thread_manager.h"
-#include "ui/views/view.h"
-
-namespace ash {
-
-using system::TrayAudioDelegate;
-using system::TrayAudioDelegateChromeOs;
-
-TrayAudioChromeOs::TrayAudioChromeOs(SystemTray* system_tray)
-    : TrayAudio(
-          system_tray,
-          std::unique_ptr<TrayAudioDelegate>(new TrayAudioDelegateChromeOs())),
-      audio_detail_view_(NULL) {
-  chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->AddObserver(
-      this);
-}
-
-TrayAudioChromeOs::~TrayAudioChromeOs() {
-  chromeos::DBusThreadManager::Get()->GetPowerManagerClient()->RemoveObserver(
-      this);
-}
-
-void TrayAudioChromeOs::Update() {
-  TrayAudio::Update();
-
-  if (audio_detail_view_)
-    audio_detail_view_->Update();
-}
-
-views::View* TrayAudioChromeOs::CreateDetailedView(LoginStatus status) {
-  if (pop_up_volume_view_) {
-    volume_view_ = new tray::VolumeView(this, audio_delegate_.get(), false);
-    return volume_view_;
-  } else {
-    WmShell::Get()->RecordUserMetricsAction(
-        UMA_STATUS_AREA_DETAILED_AUDIO_VIEW);
-    audio_detail_view_ = new tray::AudioDetailedView(this);
-    return audio_detail_view_;
-  }
-}
-
-void TrayAudioChromeOs::DestroyDetailedView() {
-  if (audio_detail_view_) {
-    audio_detail_view_ = NULL;
-  } else if (volume_view_) {
-    volume_view_ = NULL;
-    pop_up_volume_view_ = false;
-  }
-}
-
-void TrayAudioChromeOs::OnDisplayAdded(const display::Display& new_display) {
-  TrayAudio::OnDisplayAdded(new_display);
-
-  // This event will be triggered when the lid of the device is opened to exit
-  // the docked mode, we should always start or re-start HDMI re-discovering
-  // grace period right after this event.
-  audio_delegate_->SetActiveHDMIOutoutRediscoveringIfNecessary(true);
-}
-
-void TrayAudioChromeOs::OnDisplayRemoved(const display::Display& old_display) {
-  TrayAudio::OnDisplayRemoved(old_display);
-
-  // This event will be triggered when the lid of the device is closed to enter
-  // the docked mode, we should always start or re-start HDMI re-discovering
-  // grace period right after this event.
-  audio_delegate_->SetActiveHDMIOutoutRediscoveringIfNecessary(true);
-}
-
-void TrayAudioChromeOs::OnDisplayMetricsChanged(const display::Display& display,
-                                                uint32_t changed_metrics) {
-  TrayAudio::OnDisplayMetricsChanged(display, changed_metrics);
-
-  // The event could be triggered multiple times during the HDMI display
-  // transition, we don't need to restart HDMI re-discovering grace period
-  // it is already started earlier.
-  audio_delegate_->SetActiveHDMIOutoutRediscoveringIfNecessary(false);
-}
-
-void TrayAudioChromeOs::SuspendDone(const base::TimeDelta& sleep_duration) {
-  // This event is triggered when the device resumes after earlier suspension,
-  // we should always start or re-start HDMI re-discovering
-  // grace period right after this event.
-  audio_delegate_->SetActiveHDMIOutoutRediscoveringIfNecessary(true);
-}
-
-}  // namespace ash