Convert //printing to use std::unique_ptr

printing/printed_page.cc

 // 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.
 
 #include "printing/printed_page.h"
 
 #include <utility>
 
 namespace printing {
 
 PrintedPage::PrintedPage(int page_number,
-                         scoped_ptr<MetafilePlayer> metafile,
+                         std::unique_ptr<MetafilePlayer> metafile,
                          const gfx::Size& page_size,
                          const gfx::Rect& page_content_rect)
     : page_number_(page_number),
       metafile_(std::move(metafile)),
 #if defined(OS_WIN)
       shrink_factor_(0.0f),
 #endif  // OS_WIN
       page_size_(page_size),
       page_content_rect_(page_content_rect) {
 }
@@ skipping 12 matching lines @@
     int diff = paper_size.width() - page_size().width();
     content_rect->set_x(content_rect->x() + diff / 2);
   }
   if (paper_size.height() > page_size().height()) {
     int diff = paper_size.height() - page_size().height();
     content_rect->set_y(content_rect->y() + diff / 2);
   }
 }
 
 }  // namespace printing