printing::Metafile: Simplify OS_MACOSX-specific code path

printing/printed_document_mac.cc

Index: printing/printed_document_mac.cc
diff --git a/printing/printed_document_mac.cc b/printing/printed_document_mac.cc
index 73286966f993986daba7c976d96427e62c0cb7ad..0cd00e04afb6ee8c3a66953c67aefdd0f9fd8706 100644
--- a/printing/printed_document_mac.cc
+++ b/printing/printed_document_mac.cc
@@ -4,11 +4,12 @@
 
 #include "printing/printed_document.h"
 
-#import <ApplicationServices/ApplicationServices.h>
-#import <CoreFoundation/CoreFoundation.h>
+#include <ApplicationServices/ApplicationServices.h>
+#include <CoreFoundation/CoreFoundation.h>
 
 #include "base/logging.h"
 #include "printing/page_number.h"
+#include "printing/pdf_metafile_cg_mac.h"
 #include "printing/printed_page.h"
 
 namespace printing {
@@ -31,11 +32,16 @@ void PrintedDocument::RenderPrintedPage(
   page.GetCenteredPageContentRect(page_setup.physical_size(), &content_area);
 
   const MetafilePlayer* metafile = page.metafile();
+
   // Each Metafile is a one-page PDF, and pages use 1-based indexing.
   const int page_number = 1;
-  struct Metafile::MacRenderPageParams params;
+  PdfMetafileCg::RenderPageParams params;
   params.autorotate = true;
-  metafile->RenderPage(page_number, context, content_area.ToCGRect(), params);
+  std::vector<char> buffer;
+  if (metafile->GetDataAsVector(&buffer)) {
+    PdfMetafileCg::RenderPage(buffer, page_number, context,
+                              content_area.ToCGRect(), params);
+  }
 }
 
 }  // namespace printing