Convert a few components from scoped_ptr to std::unique_ptr

components/printing/test/print_mock_render_thread.h

 // Copyright (c) 2011 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 COMPONENTS_PRINTING_TEST_PRINT_MOCK_RENDER_THREAD_H_
 #define COMPONENTS_PRINTING_TEST_PRINT_MOCK_RENDER_THREAD_H_
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
 #include "content/public/test/mock_render_thread.h"
 
 namespace base {
 class DictionaryValue;
@@ skipping 68 matching lines @@
                         bool* cancel);
 #endif
 
   // For print preview, PrintWebViewHelper will update settings.
   void OnUpdatePrintSettings(int document_cookie,
                              const base::DictionaryValue& job_settings,
                              PrintMsg_PrintPages_Params* params,
                              bool* canceled);
 
   // A mock printer device used for printing tests.
-  scoped_ptr<MockPrinter> printer_;
+  std::unique_ptr<MockPrinter> printer_;
 
   // True to simulate user clicking print. False to cancel.
   bool print_dialog_user_response_;
 
   // Simulates cancelling print preview if |print_preview_pages_remaining_|
   // equals this.
   int print_preview_cancel_page_number_;
 
   // Number of pages to generate for print preview.
   int print_preview_pages_remaining_;
 #endif
 
   scoped_refptr<base::SingleThreadTaskRunner> io_task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintMockRenderThread);
 };
 
 #endif  // COMPONENTS_PRINTING_TEST_PRINT_MOCK_RENDER_THREAD_H_