Extracted MetafilePlayer interface from printing::MetafilePlayer.

chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h

Index: chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h
diff --git a/chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h b/chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h
index ecbb6ec018f7f8c5923ae46bc3cfda1570ae539a..6c5ad43f4931c1e693f0021cef3b9f21da570e74 100644
--- a/chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h
+++ b/chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h
@@ -19,7 +19,7 @@
 #include "ui/aura/window_observer.h"
 
 namespace printing {
-class Metafile;
+class MetafilePlayer;
 class PrintSettings;
 }
 
@@ -43,7 +43,7 @@ class PrintDialogGtk2
       gfx::NativeView parent_view,
       bool has_selection,
       const PrintingContextLinux::PrintSettingsCallback& callback) OVERRIDE;
-  virtual void PrintDocument(const printing::Metafile* metafile,
+  virtual void PrintDocument(const printing::MetafilePlayer& metafile,
                              const base::string16& document_name) OVERRIDE;
   virtual void AddRefToDialog() OVERRIDE;
   virtual void ReleaseDialog() OVERRIDE;