Clean up of CongestionController.

webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc

Index: webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
diff --git a/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc b/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
index 7e45136fef3076ae3067d3b70870373712397f4b..9606c30d5a69f8b9082be08cbeacd0f8e6f8699b 100644
--- a/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
+++ b/webrtc/modules/remote_bitrate_estimator/transport_feedback_adapter.cc
@@ -122,8 +122,8 @@ void TransportFeedbackAdapter::OnTransportFeedback(
 }
 
 void TransportFeedbackAdapter::OnReceiveBitrateChanged(
-    const std::vector<unsigned int>& ssrcs,
-    unsigned int bitrate) {
+    const std::vector<uint32_t>& ssrcs,
+    uint32_t bitrate) {
   bitrate_controller_->UpdateDelayBasedEstimate(bitrate);
 }