Moving notification types which are chrome specific to a new header file chrome_notification_type...

chrome/browser/tab_contents/popup_menu_helper_mac.mm

 // 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.
 
 #import <Carbon/Carbon.h>
 
 #include "chrome/browser/tab_contents/popup_menu_helper_mac.h"
 
 #include "base/memory/scoped_nsobject.h"
 #include "base/message_loop.h"
 #include "chrome/browser/renderer_host/render_widget_host_view_mac.h"
 #import "chrome/browser/ui/cocoa/base_view.h"
 #include "content/browser/renderer_host/render_view_host.h"
 #import "content/common/chrome_application_mac.h"
 #include "content/common/notification_source.h"
 #include "webkit/glue/webmenurunner_mac.h"
 
 PopupMenuHelper::PopupMenuHelper(RenderViewHost* render_view_host)
     : render_view_host_(render_view_host) {
   notification_registrar_.Add(
-      this, NotificationType::RENDER_WIDGET_HOST_DESTROYED,
+      this, content::RENDER_WIDGET_HOST_DESTROYED,
       Source<RenderWidgetHost>(render_view_host));
 }
 
 void PopupMenuHelper::ShowPopupMenu(
     const gfx::Rect& bounds,
     int item_height,
     double item_font_size,
     int selected_item,
     const std::vector<WebMenuItem>& items,
     bool right_aligned) {
@@ skipping 37 matching lines @@
 
   if ([menu_runner menuItemWasChosen]) {
     render_view_host_->DidSelectPopupMenuItem(
         [menu_runner indexOfSelectedItem]);
   } else {
     render_view_host_->DidCancelPopupMenu();
   }
 }
 
 void PopupMenuHelper::Observe(
-    NotificationType type,
+    int type,
     const NotificationSource& source,
     const NotificationDetails& details) {
-  DCHECK(type == NotificationType::RENDER_WIDGET_HOST_DESTROYED);
+  DCHECK(type == content::RENDER_WIDGET_HOST_DESTROYED);
   RenderViewHost* rvh = Source<RenderViewHost>(source).ptr();
   DCHECK_EQ(render_view_host_, rvh);
   render_view_host_ = NULL;
 }