Separate out logic to handle different category/group of context menu items from RVContextMenu class

chrome/browser/tab_contents/menu_category_guest.cc

+// Copyright 2014 The Chromium Authors. All rights reserved.

[Fady Samuel, 2014/02/24 19:07:29]

Can we somehow move this file to the webview directory? That way we can change
it when we need to?

[lazyboy, 2014/02/24 23:45:00]

Done.

+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/tab_contents/menu_category_guest.h"
+
+MenuCategoryGuest::MenuCategoryGuest(
+    content::RenderFrameHost* render_frame_host,
+    const content::ContextMenuParams& params)
+    : MenuCategoryBase(render_frame_host, params) {
+}
+
+MenuCategoryGuest::~MenuCategoryGuest() {
+}
+
+bool MenuCategoryGuest::IsCategoryEnabled(int category) {
+  switch (category) {
+    case ITEM_CATEGORY_PAGE:
+    case ITEM_CATEGORY_FRAME:
+    case ITEM_CATEGORY_LINK:
+    case ITEM_CATEGORY_SEARCH_PROVIDER:
+    case ITEM_CATEGORY_PRINT:
+    case ITEM_CATEGORY_ALL_EXTENSION:
+    case ITEM_CATEGORY_CURRENT_EXTENSION:
+    case ITEM_CATEGORY_PRINT_PREVIEW:
+      return false;
+    default:
+      return MenuCategoryBase::IsCategoryEnabled(category);
+  }
+}