Clean up of CongestionController.

webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc

Index: webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
diff --git a/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc b/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
index 4b7732c80f8212a7b47155b8c611a6c64f863aa4..8bdb68a2d50e22088c808bbb20553db809554fcd 100644
--- a/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
+++ b/webrtc/modules/remote_bitrate_estimator/remote_bitrate_estimator_single_stream.cc
@@ -175,10 +175,10 @@ void RemoteBitrateEstimatorSingleStream::UpdateEstimate(int64_t now_ms) {
                                incoming_bitrate_.Rate(now_ms),
                                mean_noise_var);
   remote_rate_->Update(&input, now_ms);
-  unsigned int target_bitrate = remote_rate_->UpdateBandwidthEstimate(now_ms);
+  uint32_t target_bitrate = remote_rate_->UpdateBandwidthEstimate(now_ms);
   if (remote_rate_->ValidEstimate()) {
     process_interval_ms_ = remote_rate_->GetFeedbackInterval();
-    std::vector<unsigned int> ssrcs;
+    std::vector<uint32_t> ssrcs;
     GetSsrcs(&ssrcs);
     observer_->OnReceiveBitrateChanged(ssrcs, target_bitrate);
   }
@@ -200,8 +200,8 @@ void RemoteBitrateEstimatorSingleStream::RemoveStream(unsigned int ssrc) {
 }
 
 bool RemoteBitrateEstimatorSingleStream::LatestEstimate(
-    std::vector<unsigned int>* ssrcs,
-    unsigned int* bitrate_bps) const {
+    std::vector<uint32_t>* ssrcs,
+    uint32_t* bitrate_bps) const {
   CriticalSectionScoped cs(crit_sect_.get());
   assert(bitrate_bps);
   if (!remote_rate_->ValidEstimate()) {
@@ -222,7 +222,7 @@ bool RemoteBitrateEstimatorSingleStream::GetStats(
 }
 
 void RemoteBitrateEstimatorSingleStream::GetSsrcs(
-    std::vector<unsigned int>* ssrcs) const {
+    std::vector<uint32_t>* ssrcs) const {
   assert(ssrcs);
   ssrcs->resize(overuse_detectors_.size());
   int i = 0;