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

third_party/WebKit/Source/devtools/front_end/sources/AddSourceMapURLDialog.js

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
+/**
+ * @unrestricted
+ */
+WebInspector.AddSourceMapURLDialog = class extends WebInspector.HBox {
+  /**
+   * @param {function(string)} callback
+   */
+  constructor(callback) {
+    super(true);
+    this.registerRequiredCSS('ui_lazy/dialog.css');
+    this.contentElement.createChild('label').textContent = WebInspector.UIString('Source map URL: ');
 
-/**
- * @constructor
- * @extends {WebInspector.HBox}
- * @param {function(string)} callback
- */
-WebInspector.AddSourceMapURLDialog = function(callback)
-{
-    WebInspector.HBox.call(this, true);
-    this.registerRequiredCSS("ui_lazy/dialog.css");
-    this.contentElement.createChild("label").textContent = WebInspector.UIString("Source map URL: ");
+    this._input = this.contentElement.createChild('input');
+    this._input.setAttribute('type', 'text');
+    this._input.addEventListener('keydown', this._onKeyDown.bind(this), false);
 
-    this._input = this.contentElement.createChild("input");
-    this._input.setAttribute("type", "text");
-    this._input.addEventListener("keydown", this._onKeyDown.bind(this), false);
-
-    var addButton = this.contentElement.createChild("button");
-    addButton.textContent = WebInspector.UIString("Add");
-    addButton.addEventListener("click", this._apply.bind(this), false);
+    var addButton = this.contentElement.createChild('button');
+    addButton.textContent = WebInspector.UIString('Add');
+    addButton.addEventListener('click', this._apply.bind(this), false);
 
     this.setDefaultFocusedElement(this._input);
     this._callback = callback;
     this.contentElement.tabIndex = 0;
-};
+  }
 
-/**
- * @param {function(string)} callback
- */
-WebInspector.AddSourceMapURLDialog.show = function(callback)
-{
+  /**
+   * @param {function(string)} callback
+   */
+  static show(callback) {
     var dialog = new WebInspector.Dialog();
     var addSourceMapURLDialog = new WebInspector.AddSourceMapURLDialog(done);
     addSourceMapURLDialog.show(dialog.element);
     dialog.setWrapsContent(true);
     dialog.show();
 
     /**
      * @param {string} value
      */
-    function done(value)
-    {
-        dialog.detach();
-        callback(value);
+    function done(value) {
+      dialog.detach();
+      callback(value);
     }
+  }
+
+  _apply() {
+    this._callback(this._input.value);
+  }
+
+  /**
+   * @param {!Event} event
+   */
+  _onKeyDown(event) {
+    if (event.keyCode === WebInspector.KeyboardShortcut.Keys.Enter.code) {
+      event.preventDefault();
+      this._apply();
+    }
+  }
 };
 
-WebInspector.AddSourceMapURLDialog.prototype = {
-    _apply: function()
-    {
-        this._callback(this._input.value);
-    },
 
-    /**
-     * @param {!Event} event
-     */
-    _onKeyDown: function(event)
-    {
-        if (event.keyCode === WebInspector.KeyboardShortcut.Keys.Enter.code) {
-            event.preventDefault();
-            this._apply();
-        }
-    },
-
-    __proto__: WebInspector.HBox.prototype
-};