Expose ILBC codec in webrtc/api/audio_codecs/

webrtc/test/fuzzers/audio_decoder_ilbc_fuzzer.cc

Index: webrtc/test/fuzzers/audio_decoder_ilbc_fuzzer.cc
diff --git a/webrtc/test/fuzzers/audio_decoder_ilbc_fuzzer.cc b/webrtc/test/fuzzers/audio_decoder_ilbc_fuzzer.cc
index b3bc4349d19d14e338536d77ff8e2e3633426ca2..fbc9d66e8c5b948a0ebc57564609411cf3950e2f 100644
--- a/webrtc/test/fuzzers/audio_decoder_ilbc_fuzzer.cc
+++ b/webrtc/test/fuzzers/audio_decoder_ilbc_fuzzer.cc
@@ -13,7 +13,7 @@
 
 namespace webrtc {
 void FuzzOneInput(const uint8_t* data, size_t size) {
-  AudioDecoderIlbc dec;
+  AudioDecoderIlbcImpl dec;
   static const int kSampleRateHz = 8000;
   static const size_t kAllocatedOuputSizeSamples = kSampleRateHz / 10;
   int16_t output[kAllocatedOuputSizeSamples];