clean up printing::Image and printing::Metafile

printing/image_mac.cc

Index: printing/image_mac.cc
diff --git a/printing/image_mac.cc b/printing/image_mac.cc
index 7edcfd7f0a07d9dbb464a90b2e8c890c6b7fcf03..fd697736b1100ad0533437808dc618a0f2368d53 100644
--- a/printing/image_mac.cc
+++ b/printing/image_mac.cc
@@ -10,13 +10,17 @@
 #include <stdint.h>
 
 #include "base/mac/scoped_cftyperef.h"
-#include "printing/metafile.h"
 #include "printing/pdf_metafile_cg_mac.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace printing {
 
-bool Image::LoadMetafile(const Metafile& metafile) {
+bool Image::LoadMetafile(const void* metafile_src_buffer,
+                         size_t metafile_src_buffer_size) {
+  PdfMetafileCg metafile;
+  if (!metafile.InitFromData(metafile_src_buffer, metafile_src_buffer_size)) {
+    return false;
+  }
   // The printing system uses single-page metafiles (page indexes are 1-based).
   const unsigned int page_number = 1;
   gfx::Rect rect(metafile.GetPageBounds(page_number));