Print headers and footers with WebKit.

chrome/renderer/print_web_view_helper_mac.mm

 // 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/print_web_view_helper.h"
 
 #import <AppKit/AppKit.h>
 
 #include "base/logging.h"
 #include "base/mac/scoped_nsautorelease_pool.h"
@@ skipping 94 matching lines @@
 
   ComputePageLayoutInPointsForCss(frame, page_number, params,
                                   ignore_css_margins_, &scale_factor,
                                   &page_layout_in_points);
   GetPageSizeAndContentAreaFromPageLayout(page_layout_in_points, page_size,
                                           &content_area);
   if (content_rect)
     *content_rect = content_area;
 
   scale_factor *= webkit_shrink_factor;
+
+  gfx::Rect canvas_area =
+      params.display_header_footer ? gfx::Rect(*page_size) : content_area;
+
   {
     SkDevice* device = metafile->StartPageForVectorCanvas(
-        *page_size, content_area, scale_factor);
+        *page_size, canvas_area, scale_factor);
     if (!device)
       return;
 
     SkRefPtr<skia::VectorCanvas> canvas = new skia::VectorCanvas(device);
     canvas->unref();  // SkRefPtr and new both took a reference.
     WebKit::WebCanvas* canvas_ptr = canvas.get();
     printing::MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile);
     skia::SetIsDraftMode(*canvas, is_print_ready_metafile_sent_);
     skia::SetIsPreviewMetafile(*canvas, is_preview);
 
-    frame->printPage(page_number, canvas_ptr);
-
     if (print_pages_params_->params.display_header_footer) {
-      // |page_number| is 0-based, so 1 is added.
       PrintHeaderAndFooter(canvas_ptr, page_number + 1,
                            print_preview_context_.total_page_count(),
                            scale_factor, page_layout_in_points,
                            *header_footer_info_, params);
     }
+    RenderPageContent(frame, page_number, canvas_area, content_area,
+                      scale_factor, canvas_ptr);
   }
 
   // Done printing. Close the device context to retrieve the compiled metafile.
   metafile->FinishPage();
 }