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 8a8de31e6f7924c7a615b2ba3756ef62c2dbd943..42b050026f472b11ac089ea59c3b6ea17070d3ec 100644
--- a/chrome/browser/printing/print_view_manager.cc
+++ b/chrome/browser/printing/print_view_manager.cc
@@ -18,6 +18,7 @@
 #include "content/browser/tab_contents/navigation_entry.h"
 #include "content/browser/tab_contents/tab_contents.h"
 #include "grit/generated_resources.h"
+#include "printing/native_metafile_factory.h"
 #include "printing/native_metafile.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";