PdfMetafileSkia gives out a SkCanvas, not a SkBaseDevice.

printing/pdf_metafile_skia.h

Index: printing/pdf_metafile_skia.h
diff --git a/printing/pdf_metafile_skia.h b/printing/pdf_metafile_skia.h
index bc75abd77939a42120fb96c0c50a661f7f0f1b30..9abb3abf9e06c8e23f0f5495322ddd7ee3014baf 100644
--- a/printing/pdf_metafile_skia.h
+++ b/printing/pdf_metafile_skia.h
@@ -10,6 +10,7 @@
 #include "base/memory/scoped_ptr.h"
 #include "build/build_config.h"
 #include "printing/metafile.h"
+#include "skia/ext/vector_canvas.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ -62,6 +63,8 @@ class PRINTING_EXPORT PdfMetafileSkia : public Metafile {
                   const MacRenderPageParams& params) const override;
 #endif
 
+  bool SaveTo(base::File* file) const override;
+
 #if defined(OS_CHROMEOS) || defined(OS_ANDROID)
   // TODO(vitalybuka): replace with SaveTo().
   bool SaveToFD(const base::FileDescriptor& fd) const;
@@ -71,17 +74,18 @@ class PRINTING_EXPORT PdfMetafileSkia : public Metafile {
   scoped_ptr<PdfMetafileSkia> GetMetafileForCurrentPage();
 
   // This method calls StartPage and then returns an appropriate
-  // VectorPlatformDevice implementation bound to the context created by
-  // StartPage or NULL on error.
-  SkBaseDevice* StartPageForVectorCanvas(const gfx::Size& page_size,
-                                         const gfx::Rect& content_area,
-                                         const float& scale_factor);
+  // VectorCanvas implementation bound to the context created by
+  // StartPage or NULL on error.  The skia::VectorCanvas pointer that
+  // is returned is owned by this PdfMetafileSkia object and does not
+  // need to be ref()ed or unref()ed.  The canvas will remain valid
+  // until FinishPage() or FinishDocument() is called.
+  skia::VectorCanvas* GetVectorCanvasForNewPage(
+      const gfx::Size& page_size, const gfx::Rect& content_area,
+      const float& scale_factor);
+
  private:
   scoped_ptr<PdfMetafileSkiaData> data_;
 
-  // True when finish page is outstanding for current page.
-  bool page_outstanding_;
-
   DISALLOW_COPY_AND_ASSIGN(PdfMetafileSkia);
 };