Removed NativeMetafile and PreviewMetafile typedef as it's always PdfMetafileSkia.

chrome/renderer/printing/print_web_view_helper_win.cc

Index: chrome/renderer/printing/print_web_view_helper_win.cc
diff --git a/chrome/renderer/printing/print_web_view_helper_win.cc b/chrome/renderer/printing/print_web_view_helper_win.cc
index 4e80461979614df6a42ef9ed0de7ea8952641021..a9ee168e4243b7977e257dc8a7b9634f06a26bb3 100644
--- a/chrome/renderer/printing/print_web_view_helper_win.cc
+++ b/chrome/renderer/printing/print_web_view_helper_win.cc
@@ -13,9 +13,9 @@
 #include "base/win/scoped_select_object.h"
 #include "chrome/common/print_messages.h"
 #include "printing/metafile.h"
-#include "printing/metafile_impl.h"
 #include "printing/metafile_skia_wrapper.h"
 #include "printing/page_size_margins.h"
+#include "printing/pdf_metafile_skia.h"
 #include "printing/units.h"
 #include "skia/ext/platform_device.h"
 #include "skia/ext/refptr.h"
@@ -36,7 +36,7 @@ void PrintWebViewHelper::PrintPageInternal(
     WebFrame* frame) {
   // Generate a memory-based metafile. It will use the current screen's DPI.
   // Each metafile contains a single page.
-  scoped_ptr<NativeMetafile> metafile(new NativeMetafile);
+  scoped_ptr<PdfMetafileSkia> metafile(new PdfMetafileSkia);
   metafile->Init();
   DCHECK(metafile->context());
   skia::InitializeDC(metafile->context());
@@ -61,7 +61,7 @@ void PrintWebViewHelper::PrintPageInternal(
     NOTREACHED();
 
   if (!params.params.supports_alpha_blend && metafile->IsAlphaBlendUsed()) {
-    scoped_ptr<NativeMetafile> raster_metafile(
+    scoped_ptr<PdfMetafileSkia> raster_metafile(
         metafile->RasterizeAlphaBlend());
     if (raster_metafile.get())
       metafile.swap(raster_metafile);
@@ -98,7 +98,7 @@ bool PrintWebViewHelper::RenderPreviewPage(
   Metafile* initial_render_metafile = print_preview_context_.metafile();
 
   if (print_preview_context_.IsModifiable() && is_print_ready_metafile_sent_) {
-    draft_metafile.reset(new PreviewMetafile);
+    draft_metafile.reset(new PdfMetafileSkia);
     initial_render_metafile = draft_metafile.get();
   }