Split HttpNetworkSession::Params into two structs.

net/http/http_network_transaction.cc

Index: net/http/http_network_transaction.cc
diff --git a/net/http/http_network_transaction.cc b/net/http/http_network_transaction.cc
index e29b01d43e23a9c2f99c2bf647a483e891c25022..32aa872a96e32c90fce7abc17386e88ef57c45c1 100644
--- a/net/http/http_network_transaction.cc
+++ b/net/http/http_network_transaction.cc
@@ -610,7 +610,7 @@ bool HttpNetworkTransaction::IsTokenBindingEnabled() const {
   stream_->GetSSLInfo(&ssl_info);
   return ssl_info.token_binding_negotiated &&
          ssl_info.token_binding_key_param == TB_PARAM_ECDSAP256 &&
-         session_->params().channel_id_service;
+         session_->context().channel_id_service;
 }
 
 void HttpNetworkTransaction::RecordTokenBindingSupport() const {
@@ -628,7 +628,7 @@ void HttpNetworkTransaction::RecordTokenBindingSupport() const {
   stream_->GetSSLInfo(&ssl_info);
   if (!session_->params().enable_token_binding) {
     supported = DISABLED;
-  } else if (!session_->params().channel_id_service) {
+  } else if (!session_->context().channel_id_service) {
     supported = CLIENT_NO_CHANNEL_ID_SERVICE;
   } else if (ssl_info.token_binding_negotiated) {
     supported = CLIENT_AND_SERVER;
@@ -969,7 +969,7 @@ int HttpNetworkTransaction::DoGetProvidedTokenBindingKey() {
     return OK;
 
   net_log_.BeginEvent(NetLogEventType::HTTP_TRANSACTION_GET_TOKEN_BINDING_KEY);
-  ChannelIDService* channel_id_service = session_->params().channel_id_service;
+  ChannelIDService* channel_id_service = session_->context().channel_id_service;
   return channel_id_service->GetOrCreateChannelID(
       request_->url.host(), &provided_token_binding_key_, io_callback_,
       &token_binding_request_);
@@ -993,7 +993,7 @@ int HttpNetworkTransaction::DoGetReferredTokenBindingKey() {
     return OK;
 
   net_log_.BeginEvent(NetLogEventType::HTTP_TRANSACTION_GET_TOKEN_BINDING_KEY);
-  ChannelIDService* channel_id_service = session_->params().channel_id_service;
+  ChannelIDService* channel_id_service = session_->context().channel_id_service;
   return channel_id_service->GetOrCreateChannelID(
       request_->token_binding_referrer, &referred_token_binding_key_,
       io_callback_, &token_binding_request_);