Adds option to enable CSS backgrounds for printing.

chrome/browser/printing/printing_message_filter.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/browser/printing/printing_message_filter.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/process_util.h"
@@ skipping 60 matching lines @@
   params->document_cookie = 0;
   params->selection_only = settings.selection_only;
   params->supports_alpha_blend = settings.supports_alpha_blend();
 
   params->display_header_footer = settings.display_header_footer;
   if (!settings.display_header_footer)
     return;
   params->date = settings.date;
   params->title = settings.title;
   params->url = settings.url;
+  params->should_print_backgrounds = settings.should_print_backgrounds;
 }
 
 }  // namespace
 
 PrintingMessageFilter::PrintingMessageFilter(int render_process_id,
                                              Profile* profile)
     : print_job_manager_(g_browser_process->print_job_manager()),
       profile_io_data_(ProfileIOData::FromResourceContext(
           profile->GetResourceContext())),
       render_process_id_(render_process_id) {
@@ skipping 283 matching lines @@
   }
 }
 
 void PrintingMessageFilter::OnCheckForCancel(int32 preview_ui_id,
                                              int preview_request_id,
                                              bool* cancel) {
   PrintPreviewUI::GetCurrentPrintPreviewStatus(preview_ui_id,
                                                preview_request_id,
                                                cancel);
 }