Print headers and footers with WebKit.

chrome/renderer/print_web_view_helper_linux.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/print_web_view_helper.h"
 
 #include "base/file_descriptor_posix.h"
 #include "base/logging.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/metrics/histogram.h"
@@ skipping 174 matching lines @@
     printing::Metafile* metafile) {
   printing::PageSizeMargins page_layout_in_points;
   double scale_factor = 1.0f;
   ComputePageLayoutInPointsForCss(frame, params.page_number, params.params,
                                   ignore_css_margins_, &scale_factor,
                                   &page_layout_in_points);
   gfx::Size page_size;
   gfx::Rect content_area;
   GetPageSizeAndContentAreaFromPageLayout(page_layout_in_points, &page_size,
                                           &content_area);
-  SkDevice* device = metafile->StartPageForVectorCanvas(
-      page_size, content_area, scale_factor);
+  gfx::Rect canvas_area =
+      params.params.display_header_footer ? gfx::Rect(page_size) : content_area;
+
+  SkDevice* device = metafile->StartPageForVectorCanvas(page_size, canvas_area,
+                                                        scale_factor);
   if (!device)
     return;
 
   // The printPage method take a reference to the canvas we pass down, so it
   // can't be a stack object.
   SkRefPtr<skia::VectorCanvas> canvas = new skia::VectorCanvas(device);
   canvas->unref();  // SkRefPtr and new both took a reference.
   printing::MetafileSkiaWrapper::SetMetafileOnCanvas(*canvas, metafile);
   skia::SetIsDraftMode(*canvas, is_print_ready_metafile_sent_);
-  frame->printPage(params.page_number, canvas.get());
 
   if (params.params.display_header_footer) {
     // |page_number| is 0-based, so 1 is added.
-    // The scale factor on Linux is 1.
+    // TODO(vitalybuka) : why does it work only with 1.25?
     PrintHeaderAndFooter(canvas.get(), params.page_number + 1,
                          print_preview_context_.total_page_count(),
-                         scale_factor, page_layout_in_points,
-                         *header_footer_info_, params.params);
+                         scale_factor/1.25,

[Alexei Svitkine (slow), 2012/11/10 16:52:13]

Nit: spaces around the /.

[Vitaly Buka (NO REVIEWS), 2012/11/12 08:20:52]

Done.

+                         page_layout_in_points, *header_footer_info_,
+                         params.params);
   }
+  RenderPageContent(frame, params.page_number, canvas_area, content_area,
+                    scale_factor, canvas.get());
 
   // Done printing. Close the device context to retrieve the compiled metafile.
   if (!metafile->FinishPage())
     NOTREACHED() << "metafile failed";
 }