Replace more ObserverList with base::ObserverList.

components/search_engines/template_url_service.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_SERVICE_H_
 #define COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_SERVICE_H_
 
 #include <list>
 #include <map>
 #include <set>
@@ skipping 628 matching lines @@
   PrefChangeRegistrar pref_change_registrar_;
 
   // Mapping from keyword to the TemplateURL.
   KeywordToTemplateMap keyword_to_template_map_;
 
   // Mapping from Sync GUIDs to the TemplateURL.
   GUIDToTemplateMap guid_to_template_map_;
 
   TemplateURLVector template_urls_;
 
-  ObserverList<TemplateURLServiceObserver> model_observers_;
+  base::ObserverList<TemplateURLServiceObserver> model_observers_;
 
   // Maps from host to set of TemplateURLs whose search url host is host.
   // NOTE: This is always non-NULL; we use a scoped_ptr<> to avoid circular
   // header dependencies.
   scoped_ptr<SearchHostToURLsMap> provider_map_;
 
   // Whether the keywords have been loaded.
   bool loaded_;
 
   // Set when the web data service fails to load properly.  This prevents
@@ skipping 59 matching lines @@
 
   // Helper class to manage the default search engine.
   DefaultSearchManager default_search_manager_;
 
   scoped_ptr<GoogleURLTracker::Subscription> google_url_updated_subscription_;
 
   DISALLOW_COPY_AND_ASSIGN(TemplateURLService);
 };
 
 #endif  // COMPONENTS_SEARCH_ENGINES_TEMPLATE_URL_SERVICE_H_