PdfMetafileSkia gives out a SkCanvas, not a SkBaseDevice.

chrome/renderer/printing/print_web_view_helper_mac.mm

Index: chrome/renderer/printing/print_web_view_helper_mac.mm
diff --git a/chrome/renderer/printing/print_web_view_helper_mac.mm b/chrome/renderer/printing/print_web_view_helper_mac.mm
index db8bb80affc455a03eb1c3eb9fd9182e389ee0cd..ff19641d17e0b26470cefcf5905ba894c9c01d4c 100644
--- a/chrome/renderer/printing/print_web_view_helper_mac.mm
+++ b/chrome/renderer/printing/print_web_view_helper_mac.mm
@@ -118,20 +118,17 @@ void PrintWebViewHelper::RenderPage(const PrintMsg_Print_Params& params,
       params.display_header_footer ? gfx::Rect(*page_size) : content_area;
 
   {
-    SkBaseDevice* device = metafile->StartPageForVectorCanvas(
+    skia::VectorCanvas* canvas = metafile->GetVectorCanvasForNewPage(
         *page_size, canvas_area, scale_factor);
-    if (!device)
+    if (!canvas)
       return;
 
-    skia::RefPtr<skia::VectorCanvas> canvas =
-        skia::AdoptRef(new skia::VectorCanvas(device));
-    blink::WebCanvas* canvas_ptr = canvas.get();
     MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile);
     skia::SetIsDraftMode(*canvas, is_print_ready_metafile_sent_);
     skia::SetIsPreviewMetafile(*canvas, is_preview);
 
     if (params.display_header_footer) {

[Vitaly Buka (NO REVIEWS), 2014/11/05 22:21:38]

static_cast

[hal.canary, 2014/11/05 23:10:58]

Done.

-      PrintHeaderAndFooter(canvas_ptr,
+      PrintHeaderAndFooter((blink::WebCanvas*)canvas,
                            page_number + 1,
                            print_preview_context_.total_page_count(),
                            *frame,
@@ -140,7 +137,7 @@ void PrintWebViewHelper::RenderPage(const PrintMsg_Print_Params& params,
                            params);
     }
     RenderPageContent(frame, page_number, canvas_area, content_area,
-                      scale_factor, canvas_ptr);
+                      scale_factor, (blink::WebCanvas*)canvas);

[Vitaly Buka (NO REVIEWS), 2014/11/05 22:21:38]

static_cast

[hal.canary, 2014/11/05 23:10:58]

Done.

   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.