Use file handles to interact with utility process.

chrome/browser/printing/print_view_manager_base.h

Index: chrome/browser/printing/print_view_manager_base.h
diff --git a/chrome/browser/printing/print_view_manager_base.h b/chrome/browser/printing/print_view_manager_base.h
index 048a4ef60baa0cc6e03950ae9ecb763c0d84ccdc..3de5a463d671315ae5a34c244eae03f9e81a0a56 100644
--- a/chrome/browser/printing/print_view_manager_base.h
+++ b/chrome/browser/printing/print_view_manager_base.h
@@ -24,7 +24,6 @@ namespace printing {
 
 class JobEventDetails;
 class MetafilePlayer;
-class PdfToEmfConverter;
 class PrintJob;
 class PrintJobWorkerOwner;
 class PrintQueriesQueue;
@@ -134,13 +133,6 @@ class PrintViewManagerBase : public content::NotificationObserver,
   // Release the PrinterQuery associated with our |cookie_|.
   void ReleasePrinterQuery();
 
-#if defined(OS_WIN)
-  // Called on completion of converting the pdf to emf.
-  void OnPdfToEmfConverted(const PrintHostMsg_DidPrintPage_Params& params,
-                           double scale_factor,
-                           ScopedVector<MetafilePlayer>* emf_files);
-#endif  // OS_WIN
-
   content::NotificationRegistrar registrar_;
 
   // Manages the low-level talk to the printer.
@@ -162,10 +154,6 @@ class PrintViewManagerBase : public content::NotificationObserver,
   bool expecting_first_page_;
 #endif  // OS_MACOSX
 
-#if defined(OS_WIN)
-  scoped_ptr<PdfToEmfConverter> pdf_to_emf_converter_;
-#endif  // OS_WIN
-
   // The document cookie of the current PrinterQuery.
   int cookie_;