PdfMetafileSkia: start supporting more document types.

chrome/browser/printing/print_view_manager_base.cc

Index: chrome/browser/printing/print_view_manager_base.cc
diff --git a/chrome/browser/printing/print_view_manager_base.cc b/chrome/browser/printing/print_view_manager_base.cc
index ad9f7f0ad4f29042ac6977f5f390a3926e73537e..083be534f90a12cda4d7fad38c7d03e7c3ecc244 100644
--- a/chrome/browser/printing/print_view_manager_base.cc
+++ b/chrome/browser/printing/print_view_manager_base.cc
@@ -171,7 +171,8 @@ void PrintViewManagerBase::OnDidPrintPage(
     }
   }
 
-  std::unique_ptr<PdfMetafileSkia> metafile(new PdfMetafileSkia);
+  std::unique_ptr<PdfMetafileSkia> metafile(
+      new PdfMetafileSkia(PDF_SKIA_DOCUMENT_TYPE));
   if (metafile_must_be_valid) {
     if (!metafile->InitFromData(shared_buf->memory(), params.data_size)) {
       NOTREACHED() << "Invalid metafile header";