Linux: Simplify printing code and make it more reliable during shutdown.

chrome/browser/printing/print_dialog_gtk.h

Index: chrome/browser/printing/print_dialog_gtk.h
===================================================================
--- chrome/browser/printing/print_dialog_gtk.h	(revision 96079)
+++ chrome/browser/printing/print_dialog_gtk.h	(working copy)
@@ -17,10 +17,6 @@
 #include "printing/printing_context_cairo.h"
 #include "ui/base/gtk/gtk_signal.h"
 
-namespace base {
-class WaitableEvent;
-}
-
 namespace printing {
 class Metafile;
 }
@@ -58,10 +54,6 @@
   // Handles dialog response.
   CHROMEGTK_CALLBACK_1(PrintDialogGtk, void, OnResponse, int);
 
-  // Saves data in |metafile| to disk for document named |document_name|.
-  void SaveDocumentToDisk(const printing::Metafile* metafile,
-                          const string16& document_name);
-
   // Prints document named |document_name|.
   void SendDocumentToPrinter(const string16& document_name);
 
@@ -86,9 +78,6 @@
   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);