DevTools: reformat front-end code to match chromium style.

third_party/WebKit/LayoutTests/inspector/filtered-item-selection-dialog-filtering.html

Index: third_party/WebKit/LayoutTests/inspector/filtered-item-selection-dialog-filtering.html
diff --git a/third_party/WebKit/LayoutTests/inspector/filtered-item-selection-dialog-filtering.html b/third_party/WebKit/LayoutTests/inspector/filtered-item-selection-dialog-filtering.html
index 2c14f582c8782422fba28647ea30605ecc5d3cff..6ec8ee340d0271d883b69359e0265bcc498db135 100644
--- a/third_party/WebKit/LayoutTests/inspector/filtered-item-selection-dialog-filtering.html
+++ b/third_party/WebKit/LayoutTests/inspector/filtered-item-selection-dialog-filtering.html
@@ -11,22 +11,21 @@ function test()
     var overrideShowMatchingItems = true;
     var history = [];
 
-    function StubDelegate()
-    {
-        WebInspector.FilteredListWidget.Delegate.call(this, history);
-    }
-    StubDelegate.prototype = {
-        itemKeyAt: function(itemIndex) { return overridenInput[itemIndex]; },
-        itemScoreAt: function(itemIndex) { return 0; },
-        itemCount: function() { return overridenInput.length; },
-        selectItem: function(itemIndex, promptValue)
+    var StubDelegate = class extends WebInspector.FilteredListWidget.Delegate {
+        constructor()
         {
-            InspectorTest.addResult("Selected item index: " + itemIndex);
-        },
-        shouldShowMatchingItems: function() { return overrideShowMatchingItems; },
+            super(history);
+        }
 
-        __proto__: WebInspector.FilteredListWidget.Delegate.prototype
-    }
+        itemKeyAt(itemIndex) { return overridenInput[itemIndex]; }
+        itemScoreAt(itemIndex) { return 0; }
+        itemCount() { return overridenInput.length; }
+        selectItem(itemIndex, promptValue)
+        {
+            InspectorTest.addResult("Selected item index: " + itemIndex);
+        }
+        shouldShowMatchingItems() { return overrideShowMatchingItems; }
+    };
 
     var delegate = new StubDelegate();