gtk: Rename OnDialogResponse() to OnResponse() to standardize on a consistent naming scheme.

chrome/browser/ui/gtk/download_in_progress_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/ui/gtk/download_in_progress_dialog_gtk.h"
 
 #include <gtk/gtk.h>
 
 #include "base/string16.h"
 #include "base/string_number_conversions.h"
@@ skipping 58 matching lines @@
 
   gtk_message_dialog_format_secondary_text(GTK_MESSAGE_DIALOG(dialog),
                                            "%s",
                                            explanation_text.c_str());
 
   g_signal_connect(dialog, "response", G_CALLBACK(OnResponseThunk), this);
 
   gtk_widget_show_all(dialog);
 }
 
-void DownloadInProgressDialogGtk::OnResponse(GtkWidget* widget,
-                                             int response) {
-  gtk_widget_destroy(widget);
-  browser_->InProgressDownloadResponse(response == GTK_RESPONSE_ACCEPT);
+void DownloadInProgressDialogGtk::OnResponse(GtkWidget* dialog,
+                                             int response_id) {
+  gtk_widget_destroy(dialog);
+  browser_->InProgressDownloadResponse(response_id == GTK_RESPONSE_ACCEPT);
   delete this;
 }