Fix integer overflow in ProbeController.

webrtc/modules/congestion_controller/probe_controller.h

Index: webrtc/modules/congestion_controller/probe_controller.h
diff --git a/webrtc/modules/congestion_controller/probe_controller.h b/webrtc/modules/congestion_controller/probe_controller.h
index 4faa8af3e3f487c3c459abdf2d22b82fb92dde8a..68e98d53792988d3c3d5719f0708203ae5b795db 100644
--- a/webrtc/modules/congestion_controller/probe_controller.h
+++ b/webrtc/modules/congestion_controller/probe_controller.h
@@ -28,13 +28,13 @@ class ProbeController {
  public:
   ProbeController(PacedSender* pacer, Clock* clock);
 
-  void SetBitrates(int min_bitrate_bps,
-                   int start_bitrate_bps,
-                   int max_bitrate_bps);
+  void SetBitrates(int64_t min_bitrate_bps,
+                   int64_t start_bitrate_bps,
+                   int64_t max_bitrate_bps);
 
   void OnNetworkStateChanged(NetworkState state);
 
-  void SetEstimatedBitrate(int bitrate_bps);
+  void SetEstimatedBitrate(int64_t bitrate_bps);
 
   void EnablePeriodicAlrProbing(bool enable);
   void Process();
@@ -51,20 +51,19 @@ class ProbeController {
 
   void InitiateExponentialProbing() EXCLUSIVE_LOCKS_REQUIRED(critsect_);
   void InitiateProbing(int64_t now_ms,
-                       std::initializer_list<int> bitrates_to_probe,
-                       int min_bitrate_to_probe_further_bps)
-      EXCLUSIVE_LOCKS_REQUIRED(critsect_);
+                       std::initializer_list<int64_t> bitrates_to_probe,
+                       bool probe_further) EXCLUSIVE_LOCKS_REQUIRED(critsect_);
 
   rtc::CriticalSection critsect_;
   PacedSender* const pacer_;
   Clock* const clock_;
   NetworkState network_state_ GUARDED_BY(critsect_);
   State state_ GUARDED_BY(critsect_);
-  int min_bitrate_to_probe_further_bps_ GUARDED_BY(critsect_);
+  int64_t min_bitrate_to_probe_further_bps_ GUARDED_BY(critsect_);
   int64_t time_last_probing_initiated_ms_ GUARDED_BY(critsect_);
-  int estimated_bitrate_bps_ GUARDED_BY(critsect_);
-  int start_bitrate_bps_ GUARDED_BY(critsect_);
-  int max_bitrate_bps_ GUARDED_BY(critsect_);
+  int64_t estimated_bitrate_bps_ GUARDED_BY(critsect_);
+  int64_t start_bitrate_bps_ GUARDED_BY(critsect_);
+  int64_t max_bitrate_bps_ GUARDED_BY(critsect_);
   int64_t last_alr_probing_time_ GUARDED_BY(critsect_);
   bool enable_periodic_alr_probing_ GUARDED_BY(critsect_);