Stop depending on TemplateURLService from DefaultSearchManager

chrome/browser/search_engines/default_search_manager.h

Index: chrome/browser/search_engines/default_search_manager.h
diff --git a/chrome/browser/search_engines/default_search_manager.h b/chrome/browser/search_engines/default_search_manager.h
index 95a5bfbf4f37a24463f026161415dd794483185a..0a295c5cd7d27c243bdb45397f80273d44b6a38d 100644
--- a/chrome/browser/search_engines/default_search_manager.h
+++ b/chrome/browser/search_engines/default_search_manager.h
@@ -80,6 +80,11 @@ class DefaultSearchManager {
   static void AddPrefValueToMap(base::DictionaryValue* value,
                                 PrefValueMap* pref_value_map);
 
+  // Testing code can call this with |disabled| set to true to cause
+  // GetDefaultSearchEngine() to return NULL instead of
+  // |fallback_default_search_| in cases where the DSE source is FROM_FALLBACK.
+  static void SetFallbackSearchEnginesDisabledForTesting(bool disabled);
+
   // Gets a pointer to the current Default Search Engine. If NULL, indicates
   // that Default Search is explicitly disabled. |source|, if not NULL, will be
   // filled in with the source of the result.