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

chrome/browser/profile_resetter/resettable_settings_snapshot.cc

 // Copyright (c) 2013 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/profile_resetter/resettable_settings_snapshot.h"
 
 #include <memory>
 #include <utility>
 
 #include "base/guid.h"
@@ skipping 46 matching lines @@
 
   PrefService* prefs = profile->GetPrefs();
   DCHECK(prefs);
   homepage_ = prefs->GetString(prefs::kHomePage);
   homepage_is_ntp_ = prefs->GetBoolean(prefs::kHomePageIsNewTabPage);
   show_home_button_ = prefs->GetBoolean(prefs::kShowHomeButton);
 
   TemplateURLService* service =
       TemplateURLServiceFactory::GetForProfile(profile);
   DCHECK(service);
-  TemplateURL* dse = service->GetDefaultSearchProvider();
+  const TemplateURL* dse = service->GetDefaultSearchProvider();
   if (dse)
     dse_url_ = dse->url();
 
   const extensions::ExtensionSet& enabled_ext =
       extensions::ExtensionRegistry::Get(profile)->enabled_extensions();
   enabled_extensions_.reserve(enabled_ext.size());
 
   for (extensions::ExtensionSet::const_iterator it = enabled_ext.begin();
        it != enabled_ext.end(); ++it)
     enabled_extensions_.push_back(std::make_pair((*it)->id(), (*it)->name()));
@@ skipping 207 matching lines @@
       ? IDS_RESET_PROFILE_SETTINGS_YES
       : IDS_RESET_PROFILE_SETTINGS_NO;
   AddPair(
       list.get(),
       l10n_util::GetStringUTF16(IDS_RESET_PROFILE_SETTINGS_SHOW_HOME_BUTTON),
       l10n_util::GetStringUTF16(show_home_button_id));
 
   TemplateURLService* service =
       TemplateURLServiceFactory::GetForProfile(profile);
   DCHECK(service);
-  TemplateURL* dse = service->GetDefaultSearchProvider();
+  const TemplateURL* dse = service->GetDefaultSearchProvider();
   if (dse) {
     AddPair(list.get(),
             l10n_util::GetStringUTF16(IDS_RESET_PROFILE_SETTINGS_DSE),
             dse->GenerateSearchURL(service->search_terms_data()).host());
   }
 
   if (snapshot.shortcuts_determined()) {
     base::string16 shortcut_targets;
     const std::vector<ShortcutCommand>& shortcuts = snapshot.shortcuts();
     for (std::vector<ShortcutCommand>::const_iterator i =
@@ skipping 24 matching lines @@
       extension_names += '\n';
     extension_names += i->second;
   }
   if (!extension_names.empty()) {
     AddPair(list.get(),
             l10n_util::GetStringUTF16(IDS_RESET_PROFILE_SETTINGS_EXTENSIONS),
             extension_names);
   }
   return list;
 }