[ObjC ARC] Converts ios/chrome/browser/sessions:sessions to ARC.Automatically generated ARCMigrat…

ios/chrome/browser/sessions/ios_chrome_tab_restore_service_client.mm

 // Copyright 2015 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 "ios/chrome/browser/sessions/ios_chrome_tab_restore_service_client.h"
 
 #include "ios/chrome/browser/browser_state/chrome_browser_state.h"
 #include "ios/chrome/browser/chrome_url_constants.h"
 #include "ios/public/provider/chrome/browser/chrome_browser_provider.h"
 #include "ios/public/provider/chrome/browser/sessions/live_tab_context_provider.h"
 #include "ios/web/public/web_thread.h"
 #include "url/gurl.h"
 
+#if !defined(__has_feature) || !__has_feature(objc_arc)
+#error "This file requires ARC support."
+#endif
+
 IOSChromeTabRestoreServiceClient::IOSChromeTabRestoreServiceClient(
     ios::ChromeBrowserState* browser_state)
     : browser_state_(browser_state) {}
 
 IOSChromeTabRestoreServiceClient::~IOSChromeTabRestoreServiceClient() {}
 
 sessions::LiveTabContext*
 IOSChromeTabRestoreServiceClient::CreateLiveTabContext(
     const std::string& app_name) {
   return ios::GetChromeBrowserProvider()->GetLiveTabContextProvider()->Create(
@@ skipping 48 matching lines @@
 
 bool IOSChromeTabRestoreServiceClient::HasLastSession() {
   return false;
 }
 
 void IOSChromeTabRestoreServiceClient::GetLastSession(
     const sessions::GetLastSessionCallback& callback,
     base::CancelableTaskTracker* tracker) {
   NOTREACHED();
 }