Cleanup ios/web_view.

ios/web_view/internal/translate/criwv_translate_client.mm

 // 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.
 
 #import "ios/web_view/internal/translate/criwv_translate_client.h"
 
 #include <vector>
 
 #include "base/logging.h"
+#include "base/memory/ptr_util.h"
+#import "base/mac/scoped_nsobject.h"
 #include "components/infobars/core/infobar.h"
 #include "components/prefs/pref_service.h"
 #include "components/translate/core/browser/page_translated_details.h"
 #include "components/translate/core/browser/translate_accept_languages.h"
 #include "components/translate/core/browser/translate_infobar_delegate.h"
 #include "components/translate/core/browser/translate_manager.h"
 #include "components/translate/core/browser/translate_prefs.h"
 #include "components/translate/core/browser/translate_step.h"
 #include "ios/web/public/browser_state.h"
 #import "ios/web/public/web_state/web_state.h"
 #include "ios/web_view/internal/criwv_browser_state.h"
 #include "ios/web_view/internal/pref_names.h"
 #include "ios/web_view/internal/translate/criwv_translate_accept_languages_factory.h"
 #import "ios/web_view/internal/translate/criwv_translate_manager_impl.h"
 #import "ios/web_view/public/criwv_translate_delegate.h"
 #include "url/gurl.h"
 
 DEFINE_WEB_STATE_USER_DATA_KEY(ios_web_view::CRIWVTranslateClient);
 
 namespace ios_web_view {
 
 CRIWVTranslateClient::CRIWVTranslateClient(web::WebState* web_state)
     : web::WebStateObserver(web_state),
-      translate_manager_(
-          new translate::TranslateManager(this, prefs::kAcceptLanguages)),
+      translate_manager_(base::MakeUnique<translate::TranslateManager>(
+          this,
+          prefs::kAcceptLanguages)),
       translate_driver_(web_state,
                         web_state->GetNavigationManager(),
                         translate_manager_.get()) {}
 
 CRIWVTranslateClient::~CRIWVTranslateClient() {}
 
 // TranslateClient implementation:
 
 std::unique_ptr<infobars::InfoBar> CRIWVTranslateClient::CreateInfoBar(
     std::unique_ptr<translate::TranslateInfoBarDelegate> delegate) const {
@@ skipping 54 matching lines @@
 
 PrefService* CRIWVTranslateClient::GetPrefs() {
   DCHECK(web_state());
   return CRIWVBrowserState::FromBrowserState(web_state()->GetBrowserState())
       ->GetPrefs();
 }
 
 std::unique_ptr<translate::TranslatePrefs>
 CRIWVTranslateClient::GetTranslatePrefs() {
   DCHECK(web_state());
-  return std::unique_ptr<translate::TranslatePrefs>(
-      new translate::TranslatePrefs(GetPrefs(), prefs::kAcceptLanguages,
-                                    nullptr));
+  return base::MakeUnique<translate::TranslatePrefs>(
+      GetPrefs(), prefs::kAcceptLanguages, nullptr);
 }
 
 translate::TranslateAcceptLanguages*
 CRIWVTranslateClient::GetTranslateAcceptLanguages() {
   translate::TranslateAcceptLanguages* accept_languages =
       CRIWVTranslateAcceptLanguagesFactory::GetForBrowserState(
           CRIWVBrowserState::FromBrowserState(web_state()->GetBrowserState()));
   DCHECK(accept_languages);
   return accept_languages;
 }
@@ skipping 13 matching lines @@
 }
 
 void CRIWVTranslateClient::WebStateDestroyed() {
   // Translation process can be interrupted.
   // Destroying the TranslateManager now guarantees that it never has to deal
   // with nullptr WebState.
   translate_manager_.reset();
 }
 
 }  // namespace ios_web_view