Rate limit the low bandwidth / min bitrate warning to once every 10 seconds.

R=terelius@webrtc.org

Review URL: https://codereview.webrtc.org/1320763003

Cr-Commit-Position: refs/heads/master@{#9855}
diff --git a/webrtc/modules/bitrate_controller/bitrate_controller_impl.cc b/webrtc/modules/bitrate_controller/bitrate_controller_impl.cc
index 4a045d9..8857ee4 100644
--- a/webrtc/modules/bitrate_controller/bitrate_controller_impl.cc
+++ b/webrtc/modules/bitrate_controller/bitrate_controller_impl.cc
@@ -132,7 +132,8 @@
 void BitrateControllerImpl::OnReceivedEstimatedBitrate(uint32_t bitrate) {
   {
     rtc::CritScope cs(&critsect_);
-    bandwidth_estimation_.UpdateReceiverEstimate(bitrate);
+    bandwidth_estimation_.UpdateReceiverEstimate(clock_->TimeInMilliseconds(),
+                                                 bitrate);
   }
   MaybeTriggerOnNetworkChanged();
 }