Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/events/event_rewriter_controller.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_EVENTS_EVENT_REWRITER_CONTROLLER_H_
 #define CHROME_BROWSER_CHROMEOS_EVENTS_EVENT_REWRITER_CONTROLLER_H_
 
 #include <list>
+#include <memory>
 #include <vector>
 
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/scoped_vector.h"
 #include "ui/aura/env_observer.h"
 #include "ui/events/event_rewriter.h"
 
 namespace ui {
 class EventSource;
 }  // namespace ui
 
 namespace chromeos {
 
 // Owns |ui::EventRewriter|s and ensures that they are added to all root
 // windows |EventSource|s, current and future, in the order that they are
 // added to this.
 class EventRewriterController : public aura::EnvObserver {
  public:
   EventRewriterController();
   ~EventRewriterController() override;
 
   // Takes ownership of an EventRewriter; can only be called before Init().
-  void AddEventRewriter(scoped_ptr<ui::EventRewriter> rewriter);
+  void AddEventRewriter(std::unique_ptr<ui::EventRewriter> rewriter);
 
   // Add rewriters to any existing root windows; must be called once only
   // after ash::Shell has been initialized.
   void Init();
 
   // aura::EnvObserver overrides:
   void OnWindowInitialized(aura::Window* window) override {}
   void OnHostInitialized(aura::WindowTreeHost* host) override;
 
  private:
   typedef std::list<ui::EventSource*> EventSourceList;
   typedef ScopedVector<ui::EventRewriter> EventRewriters;
 
   void AddToEventSource(ui::EventSource* source);
 
   // The |EventRewriter|s managed by this controller.
   EventRewriters rewriters_;
 
   // Whether the owned event rewriters have been added to existing
   // root windows; after this no more rewriters can be added.
   bool initialized_;
 
   DISALLOW_COPY_AND_ASSIGN(EventRewriterController);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_EVENTS_EVENT_REWRITER_CONTROLLER_H_