Use the new java_cpp_enum rule in content.

content/browser/android/popup_item_type_list.h

Index: content/browser/android/popup_item_type_list.h
diff --git a/content/browser/android/popup_item_type_list.h b/content/browser/android/popup_item_type_list.h
deleted file mode 100644
index 3f50490f610dc8d8b92b5164088f81f94e776405..0000000000000000000000000000000000000000
--- a/content/browser/android/popup_item_type_list.h
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2013 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.
-
-// This file intentionally does not have header guards because this file
-// is meant to be included inside a macro to generate enum values.
-
-// This file contains a list of sync PopupItemTypes which describe the type
-// and enabled state of a select popup item. List is used by Android when
-// displaying a new select popup menu.
-
-#ifndef DEFINE_POPUP_ITEM_TYPE
-#error "Please define DEFINE_POPUP_ITEM_TYPE before including this file."
-#endif
-
-// Popup item is of type group
-DEFINE_POPUP_ITEM_TYPE(GROUP, 0)
-
-// Popup item is disabled
-DEFINE_POPUP_ITEM_TYPE(DISABLED, 1)
-
-// Popup item is enabled
-DEFINE_POPUP_ITEM_TYPE(ENABLED, 2)