Fix typo: ZeroOuttputProcessor

No functional changes.

Bug: 960587
Change-Id: I2a6d00cde5bd1da04c126848733f6abb160367e1
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1601326Reviewed-by: Hongchan Choi <hongchan@chromium.org>
Commit-Queue: Raymond Toy <rtoy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#659238}

third_party/blink/web_tests/external/wpt/webaudio/the-audio-api/the-audioworklet-interface/processors/zero-output-processor.js

@@ -9,7 +9,7 @@
 
 const kRenderQuantumFrames = 128;
 
-class ZeroOuttputProcessor extends AudioWorkletProcessor {
+class ZeroOutputProcessor extends AudioWorkletProcessor {
   constructor(options) {
     super();
 
@@ -39,4 +39,4 @@ class ZeroOuttputProcessor extends AudioWorkletProcessor {
   }
 }
 
-registerProcessor('zero-output-processor', ZeroOuttputProcessor);
+registerProcessor('zero-output-processor', ZeroOutputProcessor);