Extracted MetafilePlayer interface from printing::MetafilePlayer.

printing/printing_context_linux.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 PRINTING_PRINTING_CONTEXT_LINUX_H_
 #define PRINTING_PRINTING_CONTEXT_LINUX_H_
 
 #include <string>
 
 #include "printing/printing_context.h"
 
 namespace base {
 class DictionaryValue;
 }
 
 namespace printing {
 
-class Metafile;
+class MetafilePlayer;
 class PrintDialogGtkInterface;
 
 // PrintingContext with optional native UI for print dialog and pdf_paper_size.
 class PRINTING_EXPORT PrintingContextLinux : public PrintingContext {
  public:
   explicit PrintingContextLinux(Delegate* delegate);
   virtual ~PrintingContextLinux();
 
   // Sets the function that creates the print dialog.
   static void SetCreatePrintDialogFunction(
       PrintDialogGtkInterface* (*create_dialog_func)(
           PrintingContextLinux* context));
 
   // Sets the function that returns pdf paper size through the native API.
   static void SetPdfPaperSizeFunction(
       gfx::Size (*get_pdf_paper_size)(PrintingContextLinux* context));
 
   // Prints the document contained in |metafile|.
-  void PrintDocument(const Metafile* metafile);
+  void PrintDocument(const MetafilePlayer& metafile);
 
   // PrintingContext implementation.
   virtual void AskUserForSettings(
       int max_pages,
       bool has_selection,
       const PrintSettingsCallback& callback) OVERRIDE;
   virtual gfx::Size GetPdfPaperSizeDeviceUnits() OVERRIDE;
   virtual Result UseDefaultSettings() OVERRIDE;
   virtual Result UpdatePrinterSettings(bool external_preview,
                                        bool show_system_dialog) OVERRIDE;
   virtual Result InitWithSettings(const PrintSettings& settings) OVERRIDE;
   virtual Result NewDocument(const base::string16& document_name) OVERRIDE;
   virtual Result NewPage() OVERRIDE;
   virtual Result PageDone() OVERRIDE;
   virtual Result DocumentDone() OVERRIDE;
   virtual void Cancel() OVERRIDE;
   virtual void ReleaseContext() OVERRIDE;
   virtual gfx::NativeDrawingContext context() const OVERRIDE;
 
  private:
   base::string16 document_name_;
   PrintDialogGtkInterface* print_dialog_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintingContextLinux);
 };
 
 }  // namespace printing
 
 #endif  // PRINTING_PRINTING_CONTEXT_LINUX_H_