Add Yandex referral ID to search URL.

components/search_engines/template_url.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_H_
 #define COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_H_
 
 #include <stddef.h>
 
 #include <memory>
@@ skipping 303 matching lines @@
     GOOGLE_RLZ,
     GOOGLE_SEARCH_CLIENT,
     GOOGLE_SEARCH_FIELDTRIAL_GROUP,
     GOOGLE_SEARCH_VERSION,
     GOOGLE_SESSION_TOKEN,
     GOOGLE_SUGGEST_CLIENT,
     GOOGLE_SUGGEST_REQUEST_ID,
     GOOGLE_UNESCAPED_SEARCH_TERMS,
     LANGUAGE,
     SEARCH_TERMS,
+    YANDEX_REFERRAL_ID,
   };
 
   // Used to identify an element of the raw url that can be replaced.
   struct Replacement {
     Replacement(ReplacementType type, size_t index)
         : type(type), index(index), is_post_param(false) {}
     ReplacementType type;
     size_t index;
     // Indicates the location in where the replacement is replaced. If
     // |is_post_param| is false, |index| indicates the byte position in
@@ skipping 410 matching lines @@
 
   // Caches the computed engine type across successive calls to GetEngineType().
   mutable SearchEngineType engine_type_;
 
   // TODO(sky): Add date last parsed OSD file.
 
   DISALLOW_COPY_AND_ASSIGN(TemplateURL);
 };
 
 #endif  // COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_H_