Convert //ash from scoped_ptr to std::unique_ptr

ash/accelerators/spoken_feedback_toggler.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/accelerators/spoken_feedback_toggler.h"
 
 #include <utility>
 
 #include "ash/accelerators/key_hold_detector.h"
 #include "ash/accessibility_delegate.h"
 #include "ash/shell.h"
 #include "ui/events/event.h"
 
 namespace ash {
 namespace {
 bool speech_feedback_toggler_enabled = false;
 }
 
 // static
 bool SpokenFeedbackToggler::IsEnabled() {
   return speech_feedback_toggler_enabled;
 }
 
 // static
 void SpokenFeedbackToggler::SetEnabled(bool enabled) {
   speech_feedback_toggler_enabled = enabled;
 }
 
 // static
-scoped_ptr<ui::EventHandler> SpokenFeedbackToggler::CreateHandler() {
-  scoped_ptr<KeyHoldDetector::Delegate> delegate(new SpokenFeedbackToggler());
-  return scoped_ptr<ui::EventHandler>(new KeyHoldDetector(std::move(delegate)));
+std::unique_ptr<ui::EventHandler> SpokenFeedbackToggler::CreateHandler() {
+  std::unique_ptr<KeyHoldDetector::Delegate> delegate(
+      new SpokenFeedbackToggler());
+  return std::unique_ptr<ui::EventHandler>(
+      new KeyHoldDetector(std::move(delegate)));
 }
 
 bool SpokenFeedbackToggler::ShouldProcessEvent(
     const ui::KeyEvent* event) const {
   return IsEnabled() && event->key_code() == ui::VKEY_F6;
 }
 
 bool SpokenFeedbackToggler::IsStartEvent(const ui::KeyEvent* event) const {
   return event->type() == ui::ET_KEY_PRESSED &&
       event->flags() & ui::EF_SHIFT_DOWN;
@@ skipping 14 matching lines @@
 
 void SpokenFeedbackToggler::OnKeyUnhold(const ui::KeyEvent* event) {
   toggled_ = false;
 }
 
 SpokenFeedbackToggler::SpokenFeedbackToggler() : toggled_(false) {}
 
 SpokenFeedbackToggler::~SpokenFeedbackToggler() {}
 
 }  // namespace ash