[Android] Allow setting recently visited search engines as default search engine

chrome/android/java/strings/android_chrome_strings.grd

Index: chrome/android/java/strings/android_chrome_strings.grd
diff --git a/chrome/android/java/strings/android_chrome_strings.grd b/chrome/android/java/strings/android_chrome_strings.grd
index b212a68e0ee4a904b4293bbc7ea1ef5cc1133e9b..b4a71aeb47c17bdb0cd1791c000960eb0cef0e36 100644
--- a/chrome/android/java/strings/android_chrome_strings.grd
+++ b/chrome/android/java/strings/android_chrome_strings.grd
@@ -257,6 +257,9 @@ CHAR-LIMIT guidelines:
       <message name="IDS_SEARCH_ENGINE_LOCATION_BLOCKED" desc="The text of a link displayed when location permission for a particular search engine is blocked.">
         Location is blocked
       </message>
+      <message name="IDS_SEARCH_ENGINE_RECENTLY_VISITED" desc="Divider between prepopulated and recently visited search engines.">
+        Recently visited
+      </message>
 
       <!-- Autofill preferences -->
       <message name="IDS_PREFS_AUTOFILL" desc="Title for 'Autofill forms' settings, which control what personal data can be automatically filled into web page forms. [CHAR-LIMIT=32]">