Convert //ios from scoped_ptr to std::unique_ptr.

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"
 #include "base/message_loop/message_loop.h"
 #include "ios/chrome/browser/browser_state/chrome_browser_state_io_data.h"
 #include "ios/chrome/browser/ios_chrome_io_thread.h"
 #include "ios/web/public/web_thread.h"
 #include "net/cookies/cookie_store.h"
 
 class IOSChromeURLRequestContextFactory {
  public:
   IOSChromeURLRequestContextFactory() {}
   virtual ~IOSChromeURLRequestContextFactory() {}
@@ skipping 56 matching lines @@
   scoped_refptr<net::URLRequestContextGetter> main_request_context_getter_;
 };
 
 }  // namespace
 
 // ----------------------------------------------------------------------------
 // IOSChromeURLRequestContextGetter
 // ----------------------------------------------------------------------------
 
 IOSChromeURLRequestContextGetter::IOSChromeURLRequestContextGetter(
-    scoped_ptr<IOSChromeURLRequestContextFactory> factory)
+    std::unique_ptr<IOSChromeURLRequestContextFactory> factory)
     : factory_(std::move(factory)), url_request_context_(nullptr) {
   DCHECK(factory_);
 }
 
 IOSChromeURLRequestContextGetter::~IOSChromeURLRequestContextGetter() {
   // NotifyContextShuttingDown() must have been called.
   DCHECK(!factory_.get());
   DCHECK(!url_request_context_);
 }
 
@@ skipping 22 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(
-      make_scoped_ptr(new FactoryForMain(io_data, protocol_handlers)));
+      base::WrapUnique(new 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(make_scoped_ptr(
+  return new IOSChromeURLRequestContextGetter(base::WrapUnique(
       new FactoryForIsolatedApp(io_data, partition_path, main_context)));
 }