Create a Factory for NativeMetafile.

chrome/renderer/print_web_view_helper_linux.cc

Index: chrome/renderer/print_web_view_helper_linux.cc
diff --git a/chrome/renderer/print_web_view_helper_linux.cc b/chrome/renderer/print_web_view_helper_linux.cc
index 8488073e58ff21ce9f617e9e6428ab01938e549f..c6d4bd73ee42632260433d3d26901a5ffdd5f7cc 100644
--- a/chrome/renderer/print_web_view_helper_linux.cc
+++ b/chrome/renderer/print_web_view_helper_linux.cc
@@ -6,14 +6,15 @@
 
 #include "base/file_descriptor_posix.h"
 #include "base/logging.h"
+#include "base/scoped_ptr.h"
 #include "chrome/common/render_messages.h"
 #include "chrome/common/render_messages_params.h"
+#include "printing/native_metafile_factory.h"
 #include "printing/native_metafile.h"
 #include "skia/ext/vector_canvas.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebFrame.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebSize.h"
 
-using printing::NativeMetafile;
 using WebKit::WebFrame;
 using WebKit::WebNode;
 using WebKit::WebSize;
@@ -23,7 +24,8 @@ void PrintWebViewHelper::PrintPages(const ViewMsg_PrintPages_Params& params,
                                     WebNode* node) {
   // We only can use PDF in the renderer because Cairo needs to create a
   // temporary file for a PostScript surface.
-  printing::NativeMetafile metafile(printing::NativeMetafile::PDF);
+  scoped_ptr<printing::NativeMetafile> metafile(
+      printing::NativeMetafileFactory::CreateMetafile());
   int page_count;
   skia::VectorCanvas* canvas = NULL;
 
@@ -45,7 +47,7 @@ void PrintWebViewHelper::PrintPages(const ViewMsg_PrintPages_Params& params,
     if (page_count == 0)
       return;
 
-    metafile.Init();
+    metafile->Init();
 
     ViewMsg_PrintPage_Params page_params;
     page_params.params = printParams;
@@ -54,23 +56,23 @@ void PrintWebViewHelper::PrintPages(const ViewMsg_PrintPages_Params& params,
       for (int i = 0; i < page_count; ++i) {
         page_params.page_number = i;
         delete canvas;
-        PrintPage(page_params, canvas_size, frame, &metafile, &canvas);
+        PrintPage(page_params, canvas_size, frame, metafile.get(), &canvas);
       }
     } else {
       for (size_t i = 0; i < params.pages.size(); ++i) {
         page_params.page_number = params.pages[i];
         delete canvas;
-        PrintPage(page_params, canvas_size, frame, &metafile, &canvas);
+        PrintPage(page_params, canvas_size, frame, metafile.get(), &canvas);
       }
     }
   }
 
   delete canvas;
-  metafile.Close();
+  metafile->Close();
 
   int sequence_number = -1;
   // Get the size of the resulting metafile.
-  uint32 buf_size = metafile.GetDataSize();
+  uint32 buf_size = metafile->GetDataSize();
   DCHECK_GT(buf_size, 0u);
 
   base::FileDescriptor fd;
@@ -81,7 +83,7 @@ void PrintWebViewHelper::PrintPages(const ViewMsg_PrintPages_Params& params,
     return;
   }
 
-  if (!metafile.SaveTo(fd))
+  if (!metafile->SaveTo(fd))
     return;
 
   // Tell the browser we've finished writing the file.