Connect the right metafiles for print preview on Linux and Windows.

chrome/browser/printing/print_dialog_gtk.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 CHROME_BROWSER_PRINTING_PRINT_DIALOG_GTK_H_
 #define CHROME_BROWSER_PRINTING_PRINT_DIALOG_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <gtk/gtkprintunixdialog.h>
 
 #include "base/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/browser/browser_thread.h"
-#include "printing/native_metafile.h"
 #include "printing/print_dialog_gtk_interface.h"
 #include "printing/printing_context_cairo.h"
 #include "ui/base/gtk/gtk_signal.h"
 
 namespace base {
 class WaitableEvent;
 }
 
-using printing::NativeMetafile;
+namespace printing {
+class Metafile;
+}
+
 using printing::PrintingContextCairo;
 
 // Needs to be freed on the UI thread to clean up its GTK members variables.
 class PrintDialogGtk
     : public printing::PrintDialogGtkInterface,
       public base::RefCountedThreadSafe<PrintDialogGtk,
                                         BrowserThread::DeleteOnUIThread> {
  public:
   // Creates and returns a print dialog.
   static printing::PrintDialogGtkInterface* CreatePrintDialog(
       PrintingContextCairo* context);
 
   // printing::PrintDialogGtkInterface implementation.
   virtual void ShowDialog(
       PrintingContextCairo::PrintSettingsCallback* callback);
-  virtual void PrintDocument(const NativeMetafile* metafile,
+  virtual void PrintDocument(const printing::Metafile* metafile,
                              const string16& document_name);
   virtual void AddRefToDialog();
   virtual void ReleaseDialog();
 
  private:
   friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
   friend class DeleteTask<PrintDialogGtk>;
 
   explicit PrintDialogGtk(PrintingContextCairo* context);
   ~PrintDialogGtk();
 
   // Handles dialog response.
   CHROMEGTK_CALLBACK_1(PrintDialogGtk, void, OnResponse, int);
 
   // Saves data in |metafile| to disk for document named |document_name|.
-  void SaveDocumentToDisk(const NativeMetafile* metafile,
+  void SaveDocumentToDisk(const printing::Metafile* metafile,
                           const string16& document_name);
 
   // Prints document named |document_name|.
   void SendDocumentToPrinter(const string16& document_name);
 
   // Handles print job response.
   static void OnJobCompletedThunk(GtkPrintJob* print_job,
                                   gpointer user_data,
                                   GError* error);
   void OnJobCompleted(GtkPrintJob* print_job, GError* error);
@@ skipping 11 matching lines @@
 
   // Event to signal when save document finishes.
   scoped_ptr<base::WaitableEvent> save_document_event_;
 
   FilePath path_to_pdf_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintDialogGtk);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_DIALOG_GTK_H_