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

chrome/browser/ui/cocoa/javascript_app_modal_dialog_cocoa.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_COCOA_JAVASCRIPT_APP_MODAL_DIALOG_COCOA_H_
 #define CHROME_BROWSER_UI_COCOA_JAVASCRIPT_APP_MODAL_DIALOG_COCOA_H_
 
+#include <memory>
+
 #include "base/logging.h"
 #include "base/mac/scoped_nsobject.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "components/app_modal/native_app_modal_dialog.h"
 
 class AppModalDialogHelper;
 
 #if __OBJC__
 @class NSAlert;
 @class JavaScriptAppModalDialogHelper;
 #else
 class NSAlert;
 class JavaScriptAppModalDialogHelper;
@@ skipping 15 matching lines @@
   bool IsShowing() const override;
 
   app_modal::JavaScriptAppModalDialog* dialog() const {
     return dialog_.get();
   }
 
  private:
   // Returns the NSAlert associated with the modal dialog.
   NSAlert* GetAlert() const;
 
-  scoped_ptr<app_modal::JavaScriptAppModalDialog> dialog_;
-  scoped_ptr<AppModalDialogHelper> popup_helper_;
+  std::unique_ptr<app_modal::JavaScriptAppModalDialog> dialog_;
+  std::unique_ptr<AppModalDialogHelper> popup_helper_;
 
   // Created in the constructor and destroyed in the destructor.
   base::scoped_nsobject<JavaScriptAppModalDialogHelper> helper_;
 
   bool is_showing_;
 
   DISALLOW_COPY_AND_ASSIGN(JavaScriptAppModalDialogCocoa);
 };
 
 #endif  // CHROME_BROWSER_UI_COCOA_JAVASCRIPT_APP_MODAL_DIALOG_COCOA_H_