Add the ability for DevTools to wrap network transactions.

chrome/browser/profiles/off_the_record_profile_io_data.cc

Index: chrome/browser/profiles/off_the_record_profile_io_data.cc
diff --git a/chrome/browser/profiles/off_the_record_profile_io_data.cc b/chrome/browser/profiles/off_the_record_profile_io_data.cc
index 1697d093b67d705b8326c76e6fa11ed3e8c289c0..dbfa89183b2745b7bc891d75c8aaca644604a854 100644
--- a/chrome/browser/profiles/off_the_record_profile_io_data.cc
+++ b/chrome/browser/profiles/off_the_record_profile_io_data.cc
@@ -217,13 +217,9 @@ void OffTheRecordProfileIOData::InitializeInternal(
 
   net::HttpCache::BackendFactory* main_backend =
       net::HttpCache::DefaultBackend::InMemory(0);
-  net::HttpNetworkSession::Params network_session_params;
-  PopulateNetworkSessionParams(profile_params, &network_session_params);
-  net::HttpCache* cache = new net::HttpCache(
-      network_session_params, main_backend);
+  main_http_factory_ = CreateMainHttpFactory(profile_params, main_backend);
 
-  main_http_factory_.reset(cache);
-  main_context->set_http_transaction_factory(cache);
+  main_context->set_http_transaction_factory(main_http_factory_.get());
 #if !defined(DISABLE_FTP_SUPPORT)
   ftp_factory_.reset(
       new net::FtpNetworkLayer(main_context->host_resolver()));