Added Header and Footer support using Skia

chrome/browser/printing/print_dialog_gtk.h

 // Copyright (c) 2011 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.
 
 #ifndef CHROME_BROWSER_PRINTING_PRINT_DIALOG_GTK_H_
 #define CHROME_BROWSER_PRINTING_PRINT_DIALOG_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 #include <gtk/gtkprintunixdialog.h>
@@ skipping 22 matching lines @@
       public base::RefCountedThreadSafe<PrintDialogGtk,
                                         BrowserThread::DeleteOnUIThread> {
  public:
   // Creates and returns a print dialog.
   static printing::PrintDialogGtkInterface* CreatePrintDialog(
       PrintingContextCairo* context);
 
   // printing::PrintDialogGtkInterface implementation.
   virtual void UseDefaultSettings();
   virtual bool UpdateSettings(const base::DictionaryValue& settings,
-                              const printing::PageRanges& ranges);
+                              const printing::PageRanges& ranges,
+                              const base::DictionaryValue& header_footer_info);
   virtual void ShowDialog(
       PrintingContextCairo::PrintSettingsCallback* callback);
   virtual void PrintDocument(const printing::Metafile* metafile,
                              const string16& document_name);
   virtual void AddRefToDialog();
   virtual void ReleaseDialog();
 
  private:
   friend struct BrowserThread::DeleteOnThread<BrowserThread::UI>;
   friend class DeleteTask<PrintDialogGtk>;
@@ skipping 11 matching lines @@
   // Prints document named |document_name|.
   void SendDocumentToPrinter(const string16& document_name);
 
   // Handles print job response.
   static void OnJobCompletedThunk(GtkPrintJob* print_job,
                                   gpointer user_data,
                                   GError* error);
   void OnJobCompleted(GtkPrintJob* print_job, GError* error);
 
   // Helper function for initializing |context_|'s PrintSettings with a given
-  // set of |page_ranges|.
-  void InitPrintSettings(const printing::PageRanges& page_ranges);
+  // set of |page_ranges|. Also initializes the header footer strings present
+  // in |header_footer_info| based on the page layout.
+  void InitPrintSettings(const printing::PageRanges& page_ranges,
+                         const base::DictionaryValue& header_footer_info);
 
   // Printing dialog callback.
   PrintingContextCairo::PrintSettingsCallback* callback_;
   PrintingContextCairo* context_;
 
   // Print dialog settings. PrintDialogGtk owns |dialog_| and holds references
   // to the other objects.
   GtkWidget* dialog_;
   GtkPrintSettings* gtk_settings_;
   GtkPageSetup* page_setup_;
   GtkPrinter* printer_;
 
   // Event to signal when save document finishes.
   scoped_ptr<base::WaitableEvent> save_document_event_;
 
   FilePath path_to_pdf_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintDialogGtk);
 };
 
 #endif  // CHROME_BROWSER_PRINTING_PRINT_DIALOG_GTK_H_