Replace RTC_DCHECK(false) with RTC_NOTREACHED().

webrtc/common_audio/vad/vad.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 19 matching lines @@
   Activity VoiceActivity(const int16_t* audio,
                          size_t num_samples,
                          int sample_rate_hz) override {
     int ret = WebRtcVad_Process(handle_, sample_rate_hz, audio, num_samples);
     switch (ret) {
       case 0:
         return kPassive;
       case 1:
         return kActive;
       default:
-        RTC_DCHECK(false) << "WebRtcVad_Process returned an error.";
+        RTC_NOTREACHED() << "WebRtcVad_Process returned an error.";
         return kError;
     }
   }
 
   void Reset() override {
     if (handle_)
       WebRtcVad_Free(handle_);
     handle_ = WebRtcVad_Create();
     RTC_CHECK(handle_);
     RTC_CHECK_EQ(WebRtcVad_Init(handle_), 0);
     RTC_CHECK_EQ(WebRtcVad_set_mode(handle_, aggressiveness_), 0);
   }
 
  private:
   VadInst* handle_;
   Aggressiveness aggressiveness_;
 };
 
 }  // namespace
 
 std::unique_ptr<Vad> CreateVad(Vad::Aggressiveness aggressiveness) {
   return std::unique_ptr<Vad>(new VadImpl(aggressiveness));
 }
 
 }  // namespace webrtc