Added Header and Footer support using Skia

printing/print_dialog_gtk_interface.h

Index: printing/print_dialog_gtk_interface.h
diff --git a/printing/print_dialog_gtk_interface.h b/printing/print_dialog_gtk_interface.h
index 4fb9341d87687e4a34e6fab75846c73c750878aa..e4de9db3e8e3f3d0287b7d7ec67162c979403372 100644
--- a/printing/print_dialog_gtk_interface.h
+++ b/printing/print_dialog_gtk_interface.h
@@ -20,12 +20,16 @@ class PrintDialogGtkInterface {
   // Tell the dialog to use the default print setting.
   virtual void UseDefaultSettings() = 0;
 
-  // Update the dialog to use |settings| and |ranges|, where |settings| is a
-  // dictionary of settings with possible keys from
-  // printing/print_job_constants.h. Only used when printing without the system
-  // print dialog. E.g. for Print Preview. Returns false on error.
-  virtual bool UpdateSettings(const base::DictionaryValue& settings,
-                              const PageRanges& ranges) = 0;
+  // Update the dialog to use |settings|, |ranges| and |header_footer_info|,
+  // where |settings| is a dictionary of settings with possible keys from
+  // printing/print_job_constants.h. |header_footer_info| contains the header
+  // and footer strings to be printed if requested by the user.
+  // Only used when printing without the system print dialog. E.g. for Print
+  // Preview. Returns false on error.
+  virtual bool UpdateSettings(
+      const base::DictionaryValue& settings,
+      const PageRanges& ranges,
+      const base::DictionaryValue& header_footer_info) = 0;
 
   // Shows the dialog and handles the response with |callback|. Only used when
   // printing with the native print dialog.