Enable Chrome to tweak search engines for some locales

components/search_engines/template_url_prepopulate_data.h

Index: components/search_engines/template_url_prepopulate_data.h
diff --git a/components/search_engines/template_url_prepopulate_data.h b/components/search_engines/template_url_prepopulate_data.h
index 210a0f50f2345bf1ed88a0cf0d58767176ff8ff5..6b85c1ad34e002fab764bf3ebf70400ac61f76eb 100644
--- a/components/search_engines/template_url_prepopulate_data.h
+++ b/components/search_engines/template_url_prepopulate_data.h
@@ -42,6 +42,13 @@ std::vector<std::unique_ptr<TemplateURLData>> GetPrepopulatedEngines(
     PrefService* prefs,
     size_t* default_search_provider_index);
 
+// Loads extra prepopulated engines for the given locale. If the engines are
+// already loaded, need_to-load will be set false.

[Maria, 2016/09/16 23:44:01]

nit: change to ", |need_to_load| will be set to false" 

[Ian Wen, 2016/09/19 17:37:55]

Done.

+std::vector<std::unique_ptr<TemplateURLData>> GetLocalPrepopulatedEngines(
+    const std::string& locale,
+    PrefService* prefs,
+    bool* need_to_load);
+
 // Returns all prepopulated engines for all locales. Used only by tests.
 std::vector<const PrepopulatedEngine*> GetAllPrepopulatedEngines();