Remove ASSERT_NOT_REACHED() in audio.

third_party/WebKit/Source/platform/audio/AudioBus.cpp

Index: third_party/WebKit/Source/platform/audio/AudioBus.cpp
diff --git a/third_party/WebKit/Source/platform/audio/AudioBus.cpp b/third_party/WebKit/Source/platform/audio/AudioBus.cpp
index 8fc9784ae9061a3e28e841f36c9fc17c904a37e4..1a520b746788650a02f46dd2e804d4f63ad57e4d 100644
--- a/third_party/WebKit/Source/platform/audio/AudioBus.cpp
+++ b/third_party/WebKit/Source/platform/audio/AudioBus.cpp
@@ -163,7 +163,7 @@ AudioChannel* AudioBus::channelByType(unsigned channelType) {
       }
   }
 
-  ASSERT_NOT_REACHED();
+  NOTREACHED();
   return nullptr;
 }
 
@@ -467,7 +467,7 @@ void AudioBus::copyWithGainFrom(const AudioBus& sourceBus,
                                 float* lastMixGain,
                                 float targetGain) {
   if (!topologyMatches(sourceBus)) {
-    ASSERT_NOT_REACHED();
+    NOTREACHED();
     zero();
     return;
   }
@@ -583,12 +583,12 @@ void AudioBus::copyWithSampleAccurateGainValuesFrom(
   // Make sure we're processing from the same type of bus.
   // We *are* able to process from mono -> stereo
   if (sourceBus.numberOfChannels() != 1 && !topologyMatches(sourceBus)) {
-    ASSERT_NOT_REACHED();
+    NOTREACHED();
     return;
   }
 
   if (!gainValues || numberOfGainValues > sourceBus.length()) {
-    ASSERT_NOT_REACHED();
+    NOTREACHED();
     return;
   }
 
@@ -702,7 +702,7 @@ PassRefPtr<AudioBus> AudioBus::createByMixingToMono(const AudioBus* sourceBus) {
     }
   }
 
-  ASSERT_NOT_REACHED();
+  NOTREACHED();
   return nullptr;
 }