Add HttpProtocolHandler and convert everything to use it

ios/chrome/browser/browser_state/chrome_browser_state_impl_io_data.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/browser_state/chrome_browser_state_impl_io_data.h"
 
 #include <memory>
 #include <set>
 #include <utility>
 
@@ skipping 365 matching lines @@
   std::unique_ptr<net::HttpCache::BackendFactory> main_backend(
       new net::HttpCache::DefaultBackend(
           net::DISK_CACHE, net::CACHE_BACKEND_BLOCKFILE,
           lazy_params_->cache_path, lazy_params_->cache_max_size,
           web::WebThread::GetTaskRunnerForThread(web::WebThread::CACHE)));
   http_network_session_ = CreateHttpNetworkSession(*profile_params);
   main_http_factory_ = CreateMainHttpFactory(http_network_session_.get(),
                                              std::move(main_backend));
   main_context->set_http_transaction_factory(main_http_factory_.get());
 
-  std::unique_ptr<net::URLRequestJobFactoryImpl> main_job_factory(
-      new net::URLRequestJobFactoryImpl());
+  std::unique_ptr<net::URLRequestJobFactoryImpl> main_job_factory =
+      net::URLRequestJobFactoryImpl::CreateWithHttpProtocolHandlers();
   InstallProtocolHandlers(main_job_factory.get(), protocol_handlers);
 
   // TODO(crbug.com/592012): Delete request_interceptor and its handling if
   // it's not needed in the future.
   URLRequestInterceptorScopedVector request_interceptors;
   main_job_factory_ = SetUpJobFactoryDefaults(std::move(main_job_factory),
                                               std::move(request_interceptors),
                                               main_context->network_delegate());
   main_context->set_job_factory(main_job_factory_.get());
   main_context->set_network_quality_estimator(
@@ skipping 41 matching lines @@
   std::unique_ptr<net::CookieStore> cookie_store =
       cookie_util::CreateCookieStore(ios_cookie_config);
 
   // Transfer ownership of the ChannelIDStore, HttpNetworkSession, cookies, and
   // cache to AppRequestContext.
   context->SetChannelIDService(std::move(channel_id_service));
   context->SetHttpNetworkSession(std::move(http_network_session));
   context->SetCookieStore(std::move(cookie_store));
   context->SetHttpTransactionFactory(std::move(app_http_cache));
 
-  std::unique_ptr<net::URLRequestJobFactoryImpl> job_factory(
-      new net::URLRequestJobFactoryImpl());
+  std::unique_ptr<net::URLRequestJobFactoryImpl> job_factory =
+      net::URLRequestJobFactoryImpl::CreateWithHttpProtocolHandlers();
   // TODO(crbug.com/592012): Delete request_interceptor and its handling if
   // it's not needed in the future.
   URLRequestInterceptorScopedVector request_interceptors;
   std::unique_ptr<net::URLRequestJobFactory> top_job_factory(
       SetUpJobFactoryDefaults(std::move(job_factory),
                               std::move(request_interceptors),
                               main_context->network_delegate()));
   context->SetJobFactory(std::move(top_job_factory));
 
   return context;
@@ skipping 14 matching lines @@
     const base::Closure& completion) {
   DCHECK_CURRENTLY_ON(web::WebThread::IO);
   DCHECK(initialized());
 
   DCHECK(transport_security_state());
   // Completes synchronously.
   transport_security_state()->DeleteAllDynamicDataSince(time);
   DCHECK(http_server_properties_manager_);
   http_server_properties_manager_->Clear(completion);
 }