Revert 284819 because it introduces leaks in TestingBoundaries and

trunk/src/ash/ash_touch_exploration_manager_chromeos.cc

Index: trunk/src/ash/ash_touch_exploration_manager_chromeos.cc
===================================================================
--- trunk/src/ash/ash_touch_exploration_manager_chromeos.cc	(revision 284848)
+++ trunk/src/ash/ash_touch_exploration_manager_chromeos.cc	(working copy)
@@ -1,78 +0,0 @@
-// 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/ash_touch_exploration_manager_chromeos.h"
-
-#include "ash/accessibility_delegate.h"
-#include "ash/audio/sounds.h"
-#include "ash/root_window_controller.h"
-#include "ash/shell.h"
-#include "ash/system/tray/system_tray_notifier.h"
-#include "base/command_line.h"
-#include "chromeos/audio/chromeos_sounds.h"
-#include "chromeos/audio/cras_audio_handler.h"
-#include "chromeos/chromeos_switches.h"
-#include "ui/chromeos/touch_exploration_controller.h"
-
-namespace ash {
-
-AshTouchExplorationManager::AshTouchExplorationManager(
-    RootWindowController* root_window_controller)
-    : root_window_controller_(root_window_controller),
-      audio_handler_(chromeos::CrasAudioHandler::Get()) {
-  Shell::GetInstance()->system_tray_notifier()->AddAccessibilityObserver(this);
-  UpdateTouchExplorationState();
-}
-
-AshTouchExplorationManager::~AshTouchExplorationManager() {
-  SystemTrayNotifier* system_tray_notifier =
-      Shell::GetInstance()->system_tray_notifier();
-  if (system_tray_notifier)
-    system_tray_notifier->RemoveAccessibilityObserver(this);
-}
-
-void AshTouchExplorationManager::OnAccessibilityModeChanged(
-    AccessibilityNotificationVisibility notify) {
-  UpdateTouchExplorationState();
-}
-
-void AshTouchExplorationManager::PlayVolumeAdjustSound() {
-  if (!VolumeAdjustSoundEnabled())
-    return;
-  if ((!audio_handler_->IsOutputMuted()) ||
-      !(audio_handler_->GetOutputVolumePercent() == 100))
-    PlaySystemSoundIfSpokenFeedback(chromeos::SOUND_VOLUME_ADJUST);
-}
-
-void AshTouchExplorationManager::SetOutputLevel(int volume) {
-  if (volume > 0) {
-    if (audio_handler_->IsOutputMuted()) {
-      audio_handler_->SetOutputMute(false);
-    }
-  }
-  audio_handler_->SetOutputVolumePercent(volume);
-  // Avoid negative volume.
-  if (audio_handler_->IsOutputVolumeBelowDefaultMuteLevel())
-    audio_handler_->SetOutputMute(true);
-}
-
-void AshTouchExplorationManager::UpdateTouchExplorationState() {
-  AccessibilityDelegate* delegate =
-      Shell::GetInstance()->accessibility_delegate();
-  bool enabled = delegate->IsSpokenFeedbackEnabled();
-
-  if (enabled && !touch_exploration_controller_.get()) {
-    touch_exploration_controller_.reset(new ui::TouchExplorationController(
-        root_window_controller_->GetRootWindow(), this));
-  } else if (!enabled) {
-    touch_exploration_controller_.reset();
-  }
-}
-
-bool AshTouchExplorationManager::VolumeAdjustSoundEnabled() {
-  return !CommandLine::ForCurrentProcess()->HasSwitch(
-      chromeos::switches::kDisableVolumeAdjustSound);
-}
-
-}  // namespace ash