Cleanup ios/web_view.

ios/web_view/internal/criwv_web_main_parts.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/criwv_web_main_parts.h"
 
 #include "base/base_paths.h"
+#include "base/memory/ptr_util.h"
 #include "base/path_service.h"
 #include "components/translate/core/browser/translate_download_manager.h"
 #include "ios/web_view/internal/criwv_browser_state.h"
 #import "ios/web_view/public/criwv_delegate.h"
 #include "ui/base/l10n/l10n_util_mac.h"
 #include "ui/base/resource/resource_bundle.h"
 
 namespace ios_web_view {
 
 CRIWVWebMainParts::CRIWVWebMainParts(id<CRIWVDelegate> delegate) {
   delegate_ = delegate;
 }
 
 CRIWVWebMainParts::~CRIWVWebMainParts() {}
 
 void CRIWVWebMainParts::PreMainMessageLoopRun() {
   // Initialize resources.
   l10n_util::OverrideLocaleWithCocoaLocale();
   ui::ResourceBundle::InitSharedInstanceWithLocale(
-      "", NULL, ui::ResourceBundle::DO_NOT_LOAD_COMMON_RESOURCES);
+      std::string(), NULL, ui::ResourceBundle::DO_NOT_LOAD_COMMON_RESOURCES);

[sdefresne, 2017/01/25 09:11:09]

nit: NULL -> nullptr

[michaeldo, 2017/01/25 17:23:47]

Done.

   base::FilePath pak_file;
   PathService::Get(base::DIR_MODULE, &pak_file);
-  pak_file = pak_file.Append("web_view_resources.pak");
+  pak_file = pak_file.Append(FILE_PATH_LITERAL("web_view_resources.pak"));
   ui::ResourceBundle::GetSharedInstance().AddDataPackFromPath(
       pak_file, ui::SCALE_FACTOR_NONE);
 
-  browser_state_.reset(new CRIWVBrowserState);
+  browser_state_ = base::MakeUnique<CRIWVBrowserState>();
 
   // Initialize translate.
   translate::TranslateDownloadManager* download_manager =
       translate::TranslateDownloadManager::GetInstance();
   // TODO(crbug.com/679895): See if we need the system request context here.
   download_manager->set_request_context(browser_state_->GetRequestContext());
   // TODO(crbug.com/679895): Bring up application locale correctly.
   download_manager->set_application_locale(l10n_util::GetLocaleOverride());
   download_manager->language_list()->SetResourceRequestsAllowed(true);
 }
 
 }  // namespace ios_web_view