Initial gtk3 support

chrome/browser/ui/libgtk2ui/print_dialog_gtk2.h

 // Copyright 2014 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_UI_LIBGTK2UI_PRINT_DIALOG_GTK2_H_
 #define CHROME_BROWSER_UI_LIBGTK2UI_PRINT_DIALOG_GTK2_H_
 
 #include <gtk/gtk.h>
 #include <gtk/gtkunixprint.h>
 
@@ skipping 30 matching lines @@
   bool UpdateSettings(printing::PrintSettings* settings) override;
   void ShowDialog(
       gfx::NativeView parent_view,
       bool has_selection,
       const PrintingContextLinux::PrintSettingsCallback& callback) override;
   void PrintDocument(const printing::MetafilePlayer& metafile,
                      const base::string16& document_name) override;
   void AddRefToDialog() override;
   void ReleaseDialog() override;
 
+  // Handles print job response.
+  void OnJobCompleted(GtkPrintJob* print_job, const GError* error);
+
  private:
   friend struct content::BrowserThread::DeleteOnThread<
       content::BrowserThread::UI>;
   friend class base::DeleteHelper<PrintDialogGtk2>;
 
   explicit PrintDialogGtk2(PrintingContextLinux* context);
   ~PrintDialogGtk2() override;
 
   // Handles dialog response.
   CHROMEGTK_CALLBACK_1(PrintDialogGtk2, void, OnResponse, int);
 
   // Prints document named |document_name|.
   void SendDocumentToPrinter(const base::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
   // |settings|.
   void InitPrintSettings(printing::PrintSettings* settings);
 
   // aura::WindowObserver implementation.
   void OnWindowDestroying(aura::Window* window) override;
 
   // Printing dialog callback.
   PrintingContextLinux::PrintSettingsCallback callback_;
   PrintingContextLinux* context_;
 
   // Print dialog settings. PrintDialogGtk2 owns |dialog_| and holds references
   // to the other objects.
   GtkWidget* dialog_;
   GtkPrintSettings* gtk_settings_;
   GtkPageSetup* page_setup_;
   GtkPrinter* printer_;
 
   base::FilePath path_to_pdf_;
 
   DISALLOW_COPY_AND_ASSIGN(PrintDialogGtk2);
 };
 
 #endif  // CHROME_BROWSER_UI_LIBGTK2UI_PRINT_DIALOG_GTK2_H_