base::Bind: Convert PrintingContext::PrintSettingsCallback.

printing/printing_context_mac.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 PRINTING_PRINTING_CONTEXT_MAC_H_
 #define PRINTING_PRINTING_CONTEXT_MAC_H_
 
 #include <string>
 
 #include "base/memory/scoped_nsobject.h"
 #include "printing/printing_context.h"
 #include "printing/print_job_constants.h"
 
 #ifdef __OBJC__
 @class NSPrintInfo;
 #else
 class NSPrintInfo;
 #endif  // __OBJC__
 
 namespace printing {
 
 class PRINTING_EXPORT PrintingContextMac : public PrintingContext {
  public:
   explicit PrintingContextMac(const std::string& app_locale);
   virtual ~PrintingContextMac();
 
   // PrintingContext implementation.
-  virtual void AskUserForSettings(gfx::NativeView parent_view,
-                                  int max_pages,
-                                  bool has_selection,
-                                  PrintSettingsCallback* callback) OVERRIDE;
+  virtual void AskUserForSettings(
+      gfx::NativeView parent_view,
+      int max_pages,
+      bool has_selection,
+      const PrintSettingsCallback& callback) OVERRIDE;
   virtual Result UseDefaultSettings() OVERRIDE;
   virtual Result UpdatePrinterSettings(
       const base::DictionaryValue& job_settings,
       const PageRanges& ranges) OVERRIDE;
   virtual Result InitWithSettings(const PrintSettings& settings) OVERRIDE;
   virtual Result NewDocument(const string16& document_name) OVERRIDE;
   virtual Result NewPage() OVERRIDE;
   virtual Result PageDone() OVERRIDE;
   virtual Result DocumentDone() OVERRIDE;
   virtual void Cancel() OVERRIDE;
@@ skipping 49 matching lines @@
   // The current page's context; only valid between NewPage and PageDone call
   // pairs.
   CGContext* context_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingContextMac);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTING_CONTEXT_MAC_H_