diff --git a/p2p/base/ice_controller_factory_interface.h b/p2p/base/ice_controller_factory_interface.h
index a859c07be9..bae8b8f19d 100644
--- a/p2p/base/ice_controller_factory_interface.h
+++ b/p2p/base/ice_controller_factory_interface.h
@@ -12,6 +12,7 @@
 #define P2P_BASE_ICE_CONTROLLER_FACTORY_INTERFACE_H_
 
 #include <memory>
+#include <string>
 
 #include "p2p/base/ice_controller_interface.h"
 #include "p2p/base/ice_transport_internal.h"
@@ -24,6 +25,7 @@ struct IceControllerFactoryArgs {
   std::function<IceRole()> ice_role_func;
   std::function<bool(const Connection*)> is_connection_pruned_func;
   const IceFieldTrials* ice_field_trials;
+  std::string ice_controller_field_trials;
 };
 
 class IceControllerFactoryInterface {
diff --git a/p2p/base/p2p_transport_channel.cc b/p2p/base/p2p_transport_channel.cc
index e3e61945cb..33325693b9 100644
--- a/p2p/base/p2p_transport_channel.cc
+++ b/p2p/base/p2p_transport_channel.cc
@@ -174,8 +174,7 @@ P2PTransportChannel::P2PTransportChannel(
   ice_event_log_.set_event_log(event_log);
 
   IceControllerFactoryArgs args{
-      [this] { return GetState(); },
-      [this] { return GetIceRole(); },
+      [this] { return GetState(); }, [this] { return GetIceRole(); },
       [this](const Connection* connection) {
         // TODO(webrtc:10647/jonaso): Figure out a way to remove friendship
         // between P2PTransportChannel and Connection.
@@ -183,7 +182,7 @@ P2PTransportChannel::P2PTransportChannel(
                IsRemoteCandidatePruned(connection->remote_candidate());
       },
       &field_trials_,
-  };
+      webrtc::field_trial::FindFullName("WebRTC-IceControllerFieldTrials")};
   if (ice_controller_factory != nullptr) {
     ice_controller_ = ice_controller_factory->Create(args);
   } else {