PdfMetafileSkia gives out a SkCanvas, not a SkBaseDevice.

chrome/renderer/printing/print_web_view_helper.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/renderer/printing/print_web_view_helper.h"
 
 #include <string>
 
 #include "base/auto_reset.h"
 #include "base/command_line.h"
@@ skipping 10 matching lines @@
 #include "chrome/common/render_messages.h"
 #include "chrome/grit/browser_resources.h"
 #include "chrome/renderer/prerender/prerender_helper.h"
 #include "content/public/common/web_preferences.h"
 #include "content/public/renderer/render_frame.h"
 #include "content/public/renderer/render_thread.h"
 #include "content/public/renderer/render_view.h"
 #include "net/base/escape.h"
 #include "printing/pdf_metafile_skia.h"
 #include "printing/units.h"
-#include "skia/ext/vector_platform_device_skia.h"
 #include "third_party/WebKit/public/platform/WebSize.h"
 #include "third_party/WebKit/public/platform/WebURLRequest.h"
 #include "third_party/WebKit/public/web/WebConsoleMessage.h"
 #include "third_party/WebKit/public/web/WebDocument.h"
 #include "third_party/WebKit/public/web/WebElement.h"
 #include "third_party/WebKit/public/web/WebFrameClient.h"
 #include "third_party/WebKit/public/web/WebLocalFrame.h"
 #include "third_party/WebKit/public/web/WebPlugin.h"
 #include "third_party/WebKit/public/web/WebPluginDocument.h"
 #include "third_party/WebKit/public/web/WebPrintParams.h"
@@ skipping 403 matching lines @@
 
 // static - Not anonymous so that platform implementations can use it.
 void PrintWebViewHelper::PrintHeaderAndFooter(
     blink::WebCanvas* canvas,
     int page_number,
     int total_pages,
     const blink::WebFrame& source_frame,
     float webkit_scale_factor,
     const PageSizeMargins& page_layout,
     const PrintMsg_Print_Params& params) {
-  skia::VectorPlatformDeviceSkia* device =
-      static_cast<skia::VectorPlatformDeviceSkia*>(canvas->getTopDevice());
-  device->setDrawingArea(SkPDFDevice::kMargin_DrawingArea);
-
   SkAutoCanvasRestore auto_restore(canvas, true);
   canvas->scale(1 / webkit_scale_factor, 1 / webkit_scale_factor);
 
   blink::WebSize page_size(page_layout.margin_left + page_layout.margin_right +
                                page_layout.content_width,
                            page_layout.margin_top + page_layout.margin_bottom +
                                page_layout.content_height);
 
   blink::WebView* web_view = blink::WebView::create(NULL);
   web_view->settings()->setJavaScriptEnabled(true);
@@ skipping 26 matching lines @@
 
   blink::WebPrintParams webkit_params(page_size);
   webkit_params.printerDPI = GetDPI(&params);
 
   frame->printBegin(webkit_params);
   frame->printPage(0, canvas);
   frame->printEnd();
 
   web_view->close();
   frame->close();
-
-  device->setDrawingArea(SkPDFDevice::kContent_DrawingArea);
 }
 
 // static - Not anonymous so that platform implementations can use it.
 float PrintWebViewHelper::RenderPageContent(blink::WebFrame* frame,
                                             int page_number,
                                             const gfx::Rect& canvas_area,
                                             const gfx::Rect& content_area,
                                             double scale_factor,
                                             blink::WebCanvas* canvas) {
   SkAutoCanvasRestore auto_restore(canvas, true);
@@ skipping 1504 matching lines @@
       blink::WebConsoleMessage::LevelWarning, message));
   return false;
 }
 
 void PrintWebViewHelper::ScriptingThrottler::Reset() {
   // Reset counter on successful print.
   count_ = 0;
 }
 
 }  // namespace printing