Convert //printing to use std::unique_ptr

printing/printing_context_linux.cc

 // 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.
 
 #include "printing/printing_context_linux.h"
 
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
 #include "base/values.h"
 #include "printing/metafile.h"
 #include "printing/print_dialog_gtk_interface.h"
 #include "printing/print_job_constants.h"
 #include "printing/units.h"
 
 namespace {
 
 // Function pointer for creating print dialogs. |callback| is only used when
 // |show_dialog| is true.
 printing::PrintDialogGtkInterface* (*create_dialog_func_)(
     printing::PrintingContextLinux* context) = NULL;
 
 // Function pointer for determining paper size.
 gfx::Size (*get_pdf_paper_size_)(
     printing::PrintingContextLinux* context) = NULL;
 
 }  // namespace
 
 namespace printing {
 
 // static
-scoped_ptr<PrintingContext> PrintingContext::Create(Delegate* delegate) {
-  return make_scoped_ptr<PrintingContext>(new PrintingContextLinux(delegate));
+std::unique_ptr<PrintingContext> PrintingContext::Create(Delegate* delegate) {
+  return base::WrapUnique(new PrintingContextLinux(delegate));
 }
 
 PrintingContextLinux::PrintingContextLinux(Delegate* delegate)
     : PrintingContext(delegate), print_dialog_(NULL) {
 }
 
 PrintingContextLinux::~PrintingContextLinux() {
   ReleaseContext();
 
   if (print_dialog_)
@@ skipping 141 matching lines @@
 void PrintingContextLinux::ReleaseContext() {
   // Intentional No-op.
 }
 
 gfx::NativeDrawingContext PrintingContextLinux::context() const {
   // Intentional No-op.
   return NULL;
 }
 
 }  // namespace printing