Reland of Adding a some checks and switching out a few assert for RTC_[D]CHECK.

webrtc/voice_engine/channel.cc

Index: webrtc/voice_engine/channel.cc
diff --git a/webrtc/voice_engine/channel.cc b/webrtc/voice_engine/channel.cc
index c2b95420537f4763893d1d5cea4d188240e9d527..a1a392ddf8c367c6fce82c0e94d9fab15824065c 100644
--- a/webrtc/voice_engine/channel.cc
+++ b/webrtc/voice_engine/channel.cc
@@ -2993,6 +2993,7 @@
   if (_includeAudioLevelIndication) {
     size_t length =
         _audioFrame.samples_per_channel_ * _audioFrame.num_channels_;
+    RTC_CHECK_LE(length, sizeof(_audioFrame.data_));
     if (is_muted && previous_frame_muted_) {
       rms_level_.ProcessMuted(length);
     } else {