Add contextual search to the template url system

components/search_engines/template_url_data.h

 // 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.
 
 #ifndef COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_DATA_H_
 #define COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_DATA_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 21 matching lines @@
   // The raw URL for the TemplateURL, which may not be valid as-is (e.g. because
   // it requires substitutions first).  This must be non-empty.
   void SetURL(const std::string& url);
   const std::string& url() const { return url_; }
 
   // Optional additional raw URLs.
   std::string suggestions_url;
   std::string instant_url;
   std::string image_url;
   std::string new_tab_url;
+  std::string contextual_search_url;
 
   // The following post_params are comma-separated lists used to specify the
   // post parameters for the corresponding URL.
   std::string search_url_post_params;
   std::string suggestions_url_post_params;
   std::string instant_url_post_params;
   std::string image_url_post_params;
 
   // Optional favicon for the TemplateURL.
   GURL favicon_url;
@@ skipping 60 matching lines @@
   std::string search_terms_replacement_key;
 
  private:
   // Private so we can enforce using the setters and thus enforce that these
   // fields are never empty.
   base::string16 keyword_;
   std::string url_;
 };
 
 #endif  // COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_DATA_H_