De-flake VideoSendStreamTest.ReconfigureBitratesSetsEncoderBitratesCorrectly

BUG=webrtc:5382
R=pbos@webrtc.org, stefan@webrtc.org

Review URL: https://codereview.webrtc.org/1922483002 .

Cr-Commit-Position: refs/heads/master@{#12547}
diff --git a/webrtc/modules/bitrate_controller/bitrate_controller_impl.h b/webrtc/modules/bitrate_controller/bitrate_controller_impl.h
index 14e8fd7..a966121 100644
--- a/webrtc/modules/bitrate_controller/bitrate_controller_impl.h
+++ b/webrtc/modules/bitrate_controller/bitrate_controller_impl.h
@@ -35,9 +35,15 @@
 
   RtcpBandwidthObserver* CreateRtcpBandwidthObserver() override;
 
+  // Deprecated
   void SetStartBitrate(int start_bitrate_bps) override;
+  // Deprecated
   void SetMinMaxBitrate(int min_bitrate_bps, int max_bitrate_bps) override;
 
+  void SetBitrates(int start_bitrate_bps,
+                   int min_bitrate_bps,
+                   int max_bitrate_bps) override;
+
   void UpdateDelayBasedEstimate(uint32_t bitrate_bps) override;
 
   void SetReservedBitrate(uint32_t reserved_bitrate_bps) override;