linux: delete code that worked around gtk <2.18

chrome/browser/printing/print_dialog_gtk.cc

 // 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.
 
 #include "chrome/browser/printing/print_dialog_gtk.h"
 
 #include <fcntl.h>
 #include <gtk/gtkpagesetupunixdialog.h>
 #include <gtk/gtkprintjob.h>
 #include <sys/stat.h>
@@ skipping 125 matching lines @@
 
   // |gtk_settings_| is a new object.
   gtk_settings_ = gtk_print_settings_new();
 
   scoped_ptr<GtkPrinterList> printer_list(new GtkPrinterList);
   printer_ = printer_list->default_printer();
   if (printer_) {
     g_object_ref(printer_);
     gtk_print_settings_set_printer(gtk_settings_,
                                    gtk_printer_get_name(printer_));
-#if GTK_CHECK_VERSION(2, 14, 0)
     page_setup_ = gtk_printer_get_default_page_size(printer_);
-#endif
   }
 
   if (!page_setup_)
     page_setup_ = gtk_page_setup_new();
 
   // No page range to initialize for default settings.
   PageRanges ranges_vector;
   InitPrintSettings(ranges_vector);
 }
 
@@ skipping 70 matching lines @@
   // Since we only generate PDF, only show printers that support PDF.
   // TODO(thestig) Add more capabilities to support?
   GtkPrintCapabilities cap = static_cast<GtkPrintCapabilities>(
       GTK_PRINT_CAPABILITY_GENERATE_PDF |
       GTK_PRINT_CAPABILITY_PAGE_SET |
       GTK_PRINT_CAPABILITY_COPIES |
       GTK_PRINT_CAPABILITY_COLLATE |
       GTK_PRINT_CAPABILITY_REVERSE);
   gtk_print_unix_dialog_set_manual_capabilities(GTK_PRINT_UNIX_DIALOG(dialog_),
                                                 cap);
-#if GTK_CHECK_VERSION(2, 18, 0)
   gtk_print_unix_dialog_set_embed_page_setup(GTK_PRINT_UNIX_DIALOG(dialog_),
                                              TRUE);
-#endif
   g_signal_connect(dialog_, "response", G_CALLBACK(OnResponseThunk), this);
   gtk_widget_show(dialog_);
 }
 
 void PrintDialogGtk::PrintDocument(const printing::Metafile* metafile,
                                    const string16& document_name) {
   // This runs on the print worker thread, does not block the UI thread.
   DCHECK(!BrowserThread::CurrentlyOn(BrowserThread::UI));
 
   // The document printing tasks can outlive the PrintingContext that created
@@ skipping 131 matching lines @@
   // Printing finished. Matches AddRef() in PrintDocument();
   Release();
 }
 
 void PrintDialogGtk::InitPrintSettings(const PageRanges& page_ranges) {
   PrintSettings settings;
   printing::PrintSettingsInitializerGtk::InitPrintSettings(
       gtk_settings_, page_setup_, page_ranges, false, &settings);
   context_->InitWithSettings(settings);
 }