Add Yandex referral ID to search URL.

chrome/browser/search_engines/ui_thread_search_terms_data_android.cc

Index: chrome/browser/search_engines/ui_thread_search_terms_data_android.cc
diff --git a/chrome/browser/search_engines/ui_thread_search_terms_data_android.cc b/chrome/browser/search_engines/ui_thread_search_terms_data_android.cc
index 4cae7e267cc414d391c6acfb0c2735b96b37e7cf..ca93cce6ff4dc86322d0c4642dfcefbfc8cd3a7d 100644
--- a/chrome/browser/search_engines/ui_thread_search_terms_data_android.cc
+++ b/chrome/browser/search_engines/ui_thread_search_terms_data_android.cc
@@ -4,6 +4,7 @@
 
 #include "chrome/browser/search_engines/ui_thread_search_terms_data_android.h"
 
+#include "chrome/browser/android/locale/locale_manager.h"
 #include "chrome/browser/search_engines/ui_thread_search_terms_data.h"
 #include "content/public/browser/browser_thread.h"
 
@@ -28,3 +29,7 @@ std::string UIThreadSearchTermsData::GetSearchClient() const {
          content::BrowserThread::CurrentlyOn(content::BrowserThread::UI));
   return SearchTermsDataAndroid::search_client_.Get();
 }
+
+std::string UIThreadSearchTermsData::YandexReferralID() const {
+  return LocaleManager::GetYandexReferralID();
+}