Use common code to set HttpNetworkSession::Param pointers.

chrome/browser/profiles/profile_io_data.cc

Index: chrome/browser/profiles/profile_io_data.cc
diff --git a/chrome/browser/profiles/profile_io_data.cc b/chrome/browser/profiles/profile_io_data.cc
index 179ca0ee1d2475c009829a15a869d4675b839d49..57ce08c83dfaa5c3cd4d024d1b0f4145d6208ed9 100644
--- a/chrome/browser/profiles/profile_io_data.cc
+++ b/chrome/browser/profiles/profile_io_data.cc
@@ -79,6 +79,7 @@
 #include "net/url_request/ftp_protocol_handler.h"
 #include "net/url_request/url_request.h"
 #include "net/url_request/url_request_context.h"
+#include "net/url_request/url_request_context_builder.h"
 #include "net/url_request/url_request_file_job.h"
 #include "net/url_request/url_request_intercepting_job_factory.h"
 #include "net/url_request/url_request_interceptor.h"
@@ -1295,19 +1296,11 @@ scoped_ptr<net::HttpCache> ProfileIOData::CreateMainHttpFactory(
   IOThread* const io_thread = profile_params->io_thread;
 
   io_thread->InitializeNetworkSessionParams(&params);
+  net::URLRequestContextBuilder::SetHttpNetworkSessionComponents(&params,
+                                                                 context);
 
-  params.host_resolver = context->host_resolver();
-  params.cert_verifier = context->cert_verifier();
-  params.channel_id_service = context->channel_id_service();
-  params.transport_security_state = context->transport_security_state();
-  params.cert_transparency_verifier = context->cert_transparency_verifier();
-  params.proxy_service = context->proxy_service();
+  // TODO(wjmaclean): should this move into the function call above?
   params.ssl_session_cache_shard = GetSSLSessionCacheShard();

[mmenke, 2015/08/17 20:13:04]

If you're wondering what this is (I know I was...), I think it's for SSL session
resumption.  If you had an SSL connection to a site, you can resume the old
encrypted session, and save a round trip when setting up a connection.  The way
at least one of our SSL libraries works is that SSL sessions are global state, I
believe, so we need to add a string to differentiate SSL sessions, to prevent us
from, do things like resuming a non-incognito SSL session in an incognito
session.

[wjmaclean, 2015/08/18 14:17:23]

Acknowledged.

-  params.ssl_config_service = context->ssl_config_service();
-  params.http_auth_handler_factory = context->http_auth_handler_factory();
-  params.network_delegate = context->network_delegate();
-  params.http_server_properties = context->http_server_properties();
-  params.net_log = context->net_log();
   if (data_reduction_proxy_io_data_.get())
     params.proxy_delegate = data_reduction_proxy_io_data_->proxy_delegate();