Context Menu "Open image" doesn't make sense in a Image URL Tab

chrome/android/java/src/org/chromium/chrome/browser/contextmenu/ChromeContextMenuItemDelegate.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 org.chromium.chrome.browser.Tab;
 import org.chromium.content.browser.ContentViewCore;
 import org.chromium.content_public.Referrer;
 
@@ skipping 61 matching lines @@
      * Called when the {@code url} is of an image and a link to the image should be saved to the
      * clipboard.
      * @param url The image URL.
      */
     void onSaveImageToClipboard(String url);
 
     /**
      * Called when a search by image should be performed in a new tab.
      */
     void onSearchByImageInNewTab();
+
+   /**
+    * @return page url.
+    */
+    String getPageUrl();
 }