Add a few items to ContextMenu.

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ChromeContextMenuPopulator.java

 // 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.
 
 package org.chromium.chrome.browser.contextmenu;
 
 import android.content.Context;
 import android.net.MailTo;
 import android.text.TextUtils;
 import android.view.ContextMenu;
@@ skipping 15 matching lines @@
 public class ChromeContextMenuPopulator implements ContextMenuPopulator {
     public static final int NORMAL_MODE = 0;
     public static final int CUSTOM_TAB_MODE = 1;
     public static final int FULLSCREEN_TAB_MODE = 2;
 
     // Items that are included in all context menus.
     private static final int[] BASE_WHITELIST = {
             R.id.contextmenu_copy_link_address,
             R.id.contextmenu_copy_email_address,
             R.id.contextmenu_copy_link_text,
+            R.id.contextmenu_save_link_as,
             R.id.contextmenu_save_image,
             R.id.contextmenu_share_image,
             R.id.contextmenu_save_video,
     };
 
     // Items that are included for normal Chrome browser mode.
     private static final int[] NORMAL_MODE_WHITELIST = {
             R.id.contextmenu_load_images,
             R.id.contextmenu_open_in_new_tab,
             R.id.contextmenu_open_in_incognito_tab,
             R.id.contextmenu_save_link_as,
             R.id.contextmenu_load_original_image,
             R.id.contextmenu_open_image,
             R.id.contextmenu_search_by_image,
     };
 
     // Additional items for custom tabs mode.
     private static final int[] CUSTOM_TAB_MODE_WHITELIST = {
-            R.id.contextmenu_save_link_as,
-            R.id.contextmenu_open_image
+            R.id.contextmenu_open_image,
+            R.id.contextmenu_search_by_image
     };
 
     // Additional items for fullscreen tabs mode.
     private static final int[] FULLSCREEN_TAB_MODE_WHITELIST = {
             R.id.menu_id_open_in_chrome
     };
 
     private final ContextMenuItemDelegate mDelegate;
     private MenuInflater mMenuInflater;
     private static final String BLANK_URL = "about:blank";
@@ skipping 229 matching lines @@
         }
 
         return true;
     }
 
     private void setHeaderText(Context context, ContextMenu menu, String text) {
         ContextMenuTitleView title = new ContextMenuTitleView(context, text);
         menu.setHeaderView(title);
     }
 }