Apply layout-test-tidy to LayoutTests/webaudio

third_party/WebKit/LayoutTests/webaudio/resources/audio-codec-test.js

 var defaultSampleRate = 44100.0;
 var lengthInSeconds = 1;
 
 var context = 0;
 var bufferLoader = 0;
 
-// Run test by loading the file specified by |url|.  An optional sample rate can be given to
-// select a context with a different sample rate.  The default value is |defaultSampleRate|.
-function runDecodingTest(url, optionalSampleRate) 
-{
-    if (!window.testRunner)
-        return;
+// Run test by loading the file specified by |url|.  An optional sample rate can
+// be given to select a context with a different sample rate.  The default value
+// is |defaultSampleRate|.
+function runDecodingTest(url, optionalSampleRate) {
+  if (!window.testRunner)
+    return;
 
-    var sampleRate = (typeof optionalSampleRate === "undefined") ? defaultSampleRate : optionalSampleRate;
+  let sampleRate = (typeof optionalSampleRate === 'undefined') ?
+      defaultSampleRate :
+      optionalSampleRate;
 
-    // Create offline audio context.
-    context = new OfflineAudioContext(1, sampleRate * lengthInSeconds, sampleRate);
-    
-    bufferLoader = new BufferLoader(
-        context,
-        [ url ],
-        finishedLoading
-    );
-    
-    bufferLoader.load();
-    testRunner.waitUntilDone();
+  // Create offline audio context.
+  context =
+      new OfflineAudioContext(1, sampleRate * lengthInSeconds, sampleRate);
+
+  bufferLoader = new BufferLoader(context, [url], finishedLoading);
+
+  bufferLoader.load();
+  testRunner.waitUntilDone();
 }
 
-function finishedLoading(bufferList)
-{
-    testRunner.setAudioData(createAudioData(bufferList[0]));
-    testRunner.notifyDone();
+function finishedLoading(bufferList) {
+  testRunner.setAudioData(createAudioData(bufferList[0]));
+  testRunner.notifyDone();
 }
-