Don't use browser windows for platform app shell windows

chrome/browser/ui/gtk/browser_titlebar.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/browser_titlebar.h"
 
 #include <gdk/gdkkeysyms.h>
 #include <gtk/gtk.h>
 
 #include <string>
@@ skipping 606 matching lines @@
           GdkPixbuf* icon_pixbuf = gfx::GdkPixbufFromSkBitmap(&icon);
           gtk_window_set_icon(window_, icon_pixbuf);
           g_object_unref(icon_pixbuf);
         }
         break;
       }
       case Browser::TYPE_TABBED: {
         NOTREACHED() << "We should never have a tabbed app window.";
         break;
       }
-      case Browser::TYPE_SHELL: {
-        // Shell windows don't show titles and icons for now.
-        break;
-      }
       case Browser::TYPE_PANEL: {
         break;
       }
     }
   }
 }
 
 void BrowserTitlebar::UpdateThrobber(TabContents* tab_contents) {
   DCHECK(app_mode_favicon_);
 
@@ skipping 499 matching lines @@
     ui::SimpleMenuModel::Delegate* delegate)
     : SimpleMenuModel(delegate) {
   AddItemWithStringId(IDC_NEW_TAB, IDS_TAB_CXMENU_NEWTAB);
   AddItemWithStringId(IDC_RESTORE_TAB, IDS_RESTORE_TAB);
   AddSeparator();
   AddItemWithStringId(IDC_TASK_MANAGER, IDS_TASK_MANAGER);
   AddSeparator();
   AddCheckItemWithStringId(kShowWindowDecorationsCommand,
                            IDS_SHOW_WINDOW_DECORATIONS_MENU);
 }