Add SafeClamp(), which accepts args of different types

webrtc/modules/remote_bitrate_estimator/aimd_rate_control.cc

 /*
  *  Copyright (c) 2014 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 44 matching lines @@
 }
 
 bool AimdRateControl::ValidEstimate() const {
   return bitrate_is_initialized_;
 }
 
 int64_t AimdRateControl::GetFeedbackInterval() const {
   // Estimate how often we can send RTCP if we allocate up to 5% of bandwidth
   // to feedback.
   static const int kRtcpSize = 80;
-  int64_t interval = static_cast<int64_t>(
+  const int64_t interval = static_cast<int64_t>(
       kRtcpSize * 8.0 * 1000.0 / (0.05 * current_bitrate_bps_) + 0.5);
   const int64_t kMinFeedbackIntervalMs = 200;
-  return std::min(std::max(interval, kMinFeedbackIntervalMs),
-                  kMaxFeedbackIntervalMs);
+  return rtc::SafeClamp(interval, kMinFeedbackIntervalMs,
+                        kMaxFeedbackIntervalMs);
 }
 
 bool AimdRateControl::TimeToReduceFurther(int64_t time_now,
                                           uint32_t incoming_bitrate_bps) const {
   const int64_t bitrate_reduction_interval =
       std::max<int64_t>(std::min<int64_t>(rtt_, 200), 10);
   if (time_now - time_last_bitrate_change_ >= bitrate_reduction_interval) {
     return true;
   }
   if (ValidEstimate()) {
@@ skipping 230 matching lines @@
     default:
       assert(false);
   }
 }
 
 void AimdRateControl::ChangeRegion(RateControlRegion region) {
   rate_control_region_ = region;
 }
 
 }  // namespace webrtc