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

chrome/browser/chromeos/login/test/app_window_waiter.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_LOGIN_TEST_APP_WINDOW_WAITER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_TEST_APP_WINDOW_WAITER_H_
 
+#include <memory>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "extensions/browser/app_window/app_window_registry.h"
 
 namespace extensions {
 class AppWindow;
 }
 
 namespace chromeos {
 
 // Helper class that monitors app windows to wait for a window to appear.
@@ skipping 17 matching lines @@
 
  private:
   enum WaitType {
     WAIT_FOR_NONE,
     WAIT_FOR_ADDED,
     WAIT_FOR_SHOWN,
   };
 
   extensions::AppWindowRegistry* const registry_;
   const std::string app_id_;
-  scoped_ptr<base::RunLoop> run_loop_;
+  std::unique_ptr<base::RunLoop> run_loop_;
   WaitType wait_type_ = WAIT_FOR_NONE;
   extensions::AppWindow* window_ = nullptr;
 
   DISALLOW_COPY_AND_ASSIGN(AppWindowWaiter);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_TEST_APP_WINDOW_WAITER_H_