Apply layout-test-tidy to LayoutTests/webaudio

third_party/WebKit/LayoutTests/webaudio/resources/buffer-loader.js

 function BufferLoader(context, urlList, callback) {
-    this.context = context;
-    this.urlList = urlList;
-    this.onload = callback;
-    this.bufferList = new Array();
-    this.loadCount = 0;
+  this.context = context;
+  this.urlList = urlList;
+  this.onload = callback;
+  this.bufferList = new Array();
+  this.loadCount = 0;
 }
 
-BufferLoader.prototype.loadBuffer = function(url, index) {
-    // Load buffer asynchronously
-    var request = new XMLHttpRequest();
-    request.open("GET", url, true);
-    request.responseType = "arraybuffer";
+BufferLoader.prototype.loadBuffer =
+    function(url, index) {
+  // Load buffer asynchronously
+  let request = new XMLHttpRequest();
+  request.open('GET', url, true);
+  request.responseType = 'arraybuffer';
 
-    var loader = this;
+  let loader = this;
 
-    request.onload = function() {
-        loader.context.decodeAudioData(
-            request.response,
-            function (decodedAudio) {
-                try {
-                    loader.bufferList[index] = decodedAudio;
-                    if (++loader.loadCount == loader.urlList.length)
-                        loader.onload(loader.bufferList);
-                } catch(e) {
-                  console.log(e);
-                  alert('BufferLoader: unable to load buffer ' + index + ", url: " + loader.urlList[index]);
-                }
-            },
-            function () {
-                alert('error decoding file data: ' + url);
-            });
-    }
+  request.onload =
+      function() {
+    loader.context.decodeAudioData(
+        request.response,
+        function(decodedAudio) {
+          try {
+            loader.bufferList[index] = decodedAudio;
+            if (++loader.loadCount == loader.urlList.length)
+              loader.onload(loader.bufferList);
+          } catch (e) {
+            console.log(e);
+            alert(
+                'BufferLoader: unable to load buffer ' + index +
+                ', url: ' + loader.urlList[index]);
+          }
+        },
+        function() {
+          alert('error decoding file data: ' + url);
+        });
+  }
 
-    request.onerror = function() {
-        alert('BufferLoader: XHR error');        
-    }
+      request.onerror =
+          function() {
+    alert('BufferLoader: XHR error');
+  }
 
-    request.send();
+          request.send();
 }
 
-BufferLoader.prototype.load = function() {
-    for (var i = 0; i < this.urlList.length; ++i)
-        this.loadBuffer(this.urlList[i], i);
+    BufferLoader.prototype.load = function() {
+  for (let i = 0; i < this.urlList.length; ++i)
+    this.loadBuffer(this.urlList[i], i);
 }