Make <a ping> work for context menus.

chrome/browser/renderer_context_menu/render_view_context_menu.cc

 // Copyright 2014 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.
 
 #include "chrome/browser/renderer_context_menu/render_view_context_menu.h"
 
 #include <algorithm>
 #include <set>
 #include <utility>
 
@@ skipping 1921 matching lines @@
 
 // Controller functions --------------------------------------------------------
 
 void RenderViewContextMenu::OpenURL(
     const GURL& url, const GURL& referring_url,
     WindowOpenDisposition disposition,
     content::PageTransition transition) {
   content::Referrer referrer(referring_url.GetAsReferrer(),
       params_.referrer_policy);
 
+  if (params_.link_url == url && disposition != OFF_THE_RECORD)
+    params_.custom_context.link_followed = url;
+
   WebContents* new_contents = source_web_contents_->OpenURL(OpenURLParams(
       url, referrer, disposition, transition, false));
   if (!new_contents)
     return;
 
   RetargetingDetails details;
   details.source_web_contents = source_web_contents_;
   details.source_render_frame_id = render_frame_id_;
   details.target_url = url;
   details.target_web_contents = new_contents;
@@ skipping 43 matching lines @@
   source_web_contents_->GetRenderViewHost()->
       ExecuteMediaPlayerActionAtLocation(location, action);
 }
 
 void RenderViewContextMenu::PluginActionAt(
     const gfx::Point& location,
     const WebPluginAction& action) {
   source_web_contents_->GetRenderViewHost()->
       ExecutePluginActionAtLocation(location, action);
 }