Create a Factory for NativeMetafile.

chrome/browser/printing/print_view_manager.cc

Index: chrome/browser/printing/print_view_manager.cc
diff --git a/chrome/browser/printing/print_view_manager.cc b/chrome/browser/printing/print_view_manager.cc
index 8eeba7ddb56a5dff7b8be192d397f18205c4936a..d53bd1675c1129facea0a30bc55b82ddf70dc2d5 100644
--- a/chrome/browser/printing/print_view_manager.cc
+++ b/chrome/browser/printing/print_view_manager.cc
@@ -19,6 +19,7 @@
 #include "chrome/common/render_messages_params.h"
 #include "grit/generated_resources.h"
 #include "printing/native_metafile.h"
+#include "printing/native_metafile_factory.h"
 #include "printing/printed_document.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ -130,7 +131,7 @@ void PrintViewManager::OnDidPrintPage(
     }
   }
 
-  scoped_ptr<NativeMetafile> metafile(new NativeMetafile());
+  scoped_ptr<NativeMetafile> metafile(NativeMetafileFactory::CreateMetafile());
   if (metafile_must_be_valid) {
     if (!metafile->Init(shared_buf.memory(), params.data_size)) {
       NOTREACHED() << "Invalid metafile header";