Unifying NativeMetafile class interface (as much as possible) for Linux, Mac, Win

printing/pdf_metafile_mac_unittest.cc

Index: printing/pdf_metafile_mac_unittest.cc
diff --git a/printing/pdf_metafile_mac_unittest.cc b/printing/pdf_metafile_mac_unittest.cc
index 8b52b0677da2a92bb073693f6edf0acbcff4ccf0..b45370d63b02133828cc150ea0d2a25b8b0b91cd 100644
--- a/printing/pdf_metafile_mac_unittest.cc
+++ b/printing/pdf_metafile_mac_unittest.cc
@@ -17,7 +17,8 @@ namespace printing {
 TEST(PdfMetafileTest, Pdf) {
   // Test in-renderer constructor.
   printing::PdfMetafile pdf;
-  EXPECT_TRUE(pdf.Init() != NULL);
+  EXPECT_TRUE(pdf.Init());
+  EXPECT_TRUE(pdf.context() != NULL);
 
   // Render page 1 at origin (10.0, 10.0).
   gfx::Point origin_1(10.0f, 10.0f);