[webcodecs] Fix type of EncodedAudioChunkInit.type

Change-Id: Iee6a5981241d6a9c7e3993e7b1a26960f05721fc
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2821885
Commit-Queue: Eugene Zemtsov <eugene@chromium.org>
Auto-Submit: Ben Wagner aka dogben <benjaminwagner@google.com>
Reviewed-by: Eugene Zemtsov <eugene@chromium.org>
Cr-Commit-Position: refs/heads/master@{#872324}
GitOrigin-RevId: eebdfe9f0dc47cc7239231cfec041174e56650f5

blink/renderer/modules/webcodecs/encoded_audio_chunk_init.idl

@@ -5,7 +5,7 @@
 // https://github.com/WICG/web-codecs
 
 dictionary EncodedAudioChunkInit {
-  required EncodedVideoChunkType type;
+  required EncodedAudioChunkType type;
   required unsigned long long timestamp; // microseconds
   required BufferSource data;
 };