Re-write many calls to WrapUnique() with MakeUnique()

ios/chrome/browser/net/ios_chrome_url_request_context_getter.cc

 // 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/net/ios_chrome_url_request_context_getter.h"
 
 #include "base/bind.h"
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "base/memory/ptr_util.h"
@@ skipping 109 matching lines @@
 scoped_refptr<base::SingleThreadTaskRunner>
 IOSChromeURLRequestContextGetter::GetNetworkTaskRunner() const {
   return web::WebThread::GetTaskRunnerForThread(web::WebThread::IO);
 }
 
 // static
 IOSChromeURLRequestContextGetter* IOSChromeURLRequestContextGetter::Create(
     const ChromeBrowserStateIOData* io_data,
     ProtocolHandlerMap* protocol_handlers) {
   return new IOSChromeURLRequestContextGetter(
-      base::WrapUnique(new FactoryForMain(io_data, protocol_handlers)));
+      base::MakeUnique<FactoryForMain>(io_data, protocol_handlers));
 }
 
 // static
 IOSChromeURLRequestContextGetter*
 IOSChromeURLRequestContextGetter::CreateForIsolatedApp(
     net::URLRequestContextGetter* main_context,
     const ChromeBrowserStateIOData* io_data,
     const base::FilePath& partition_path) {
-  return new IOSChromeURLRequestContextGetter(base::WrapUnique(
-      new FactoryForIsolatedApp(io_data, partition_path, main_context)));
+  return new IOSChromeURLRequestContextGetter(
+      base::MakeUnique<FactoryForIsolatedApp>(io_data, partition_path,
+                                              main_context));
 }