Remove non-const version of GetDefaultSearchProvider() and make all callers call the const version

chrome/browser/ui/search_engines/keyword_editor_controller.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/ui/search_engines/keyword_editor_controller.h"
 
 #include "base/metrics/user_metrics.h"
 #include "chrome/browser/search_engines/template_url_service_factory.h"
 #include "chrome/browser/ui/search_engines/template_url_table_model.h"
 #include "components/prefs/pref_registry_simple.h"
@@ skipping 58 matching lines @@
 bool KeywordEditorController::CanRemove(const TemplateURL* url) const {
   return (url->type() == TemplateURL::NORMAL) &&
       (url != url_model_->GetDefaultSearchProvider());
 }
 
 void KeywordEditorController::RemoveTemplateURL(int index) {
   table_model_->Remove(index);
   base::RecordAction(UserMetricsAction("KeywordEditor_RemoveKeyword"));
 }
 
-TemplateURL* KeywordEditorController::GetDefaultSearchProvider() {
+const TemplateURL* KeywordEditorController::GetDefaultSearchProvider() {
   return url_model_->GetDefaultSearchProvider();
 }
 
 int KeywordEditorController::MakeDefaultTemplateURL(int index) {
   return table_model_->MakeDefaultTemplateURL(index);
 }
 
 bool KeywordEditorController::loaded() const {
   return url_model_->loaded();
 }
 
 TemplateURL* KeywordEditorController::GetTemplateURL(int index) {
   return table_model_->GetTemplateURL(index);
 }