linux: delete code that worked around gtk <2.18

views/controls/menu/native_menu_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 "views/controls/menu/native_menu_gtk.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 375 matching lines @@
     case ui::MenuModel::TYPE_COMMAND: {
       SkBitmap icon;
       // Create menu item with icon if icon exists.
       if (model_->HasIcons() && model_->GetIconAt(index, &icon)) {
         menu_item = gtk_image_menu_item_new_with_mnemonic(label.c_str());
         GdkPixbuf* pixbuf = gfx::GdkPixbufFromSkBitmap(&icon);
         gtk_image_menu_item_set_image(GTK_IMAGE_MENU_ITEM(menu_item),
                                       gtk_image_new_from_pixbuf(pixbuf));
         g_object_unref(pixbuf);
 
-#if GTK_CHECK_VERSION(2,16,0)
         // Show the image even if the "gtk-menu-images" setting is turned off.
         gtk_image_menu_item_set_always_show_image(
             GTK_IMAGE_MENU_ITEM(menu_item), TRUE);
-#endif
       } else {
         menu_item = gtk_menu_item_new_with_mnemonic(label.c_str());
       }
       break;
     }
     default:
       NOTREACHED();
       break;
   }
 
@@ skipping 188 matching lines @@
     submenu = gtk_menu_item_get_submenu(GTK_MENU_ITEM(menu_item));
   }
 
   // Figure out the item index and total number of items.
   GList* items = gtk_container_get_children(GTK_CONTAINER(menu));
   guint count = g_list_length(items);
   int index = g_list_index(items, static_cast<gconstpointer>(menu_item));
 
   // Get the menu item's label.
   std::string name;
-#if GTK_CHECK_VERSION(2, 16, 0)
   name = gtk_menu_item_get_label(GTK_MENU_ITEM(menu_item));
-#else
-  GList* children = gtk_container_get_children(GTK_CONTAINER(menu_item));
-  for (GList* l = g_list_first(children); l != NULL; l = g_list_next(l)) {
-    GtkWidget* child = static_cast<GtkWidget*>(l->data);
-    if (GTK_IS_LABEL(child)) {
-      name = gtk_label_get_label(GTK_LABEL(child));
-      break;
-    }
-  }
-#endif
 
   if (ViewsDelegate::views_delegate) {
     ViewsDelegate::views_delegate->NotifyMenuItemFocused(
         L"",
         UTF8ToWide(name),
         index,
         count,
         submenu != NULL);
   }
 }
 
 // static
 void NativeMenuGtk::MenuDestroyed(GtkWidget* widget, Menu2* menu2) {
   NativeMenuGtk* native_menu =
       static_cast<NativeMenuGtk*>(menu2->wrapper_.get());
   // The native gtk widget has already been destroyed.
   native_menu->menu_ = NULL;
   delete menu2;
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 // MenuWrapper, public:
 
 // static
 MenuWrapper* MenuWrapper::CreateWrapper(Menu2* menu) {
   return new NativeMenuGtk(menu);
 }
 
 }  // namespace views