DevTools: use shorthand syntax in interface definitions.

third_party/WebKit/Source/devtools/front_end/profiler/HeapSnapshotGridNodes.js

 /*
  * Copyright (C) 2011 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 425 matching lines @@
   PopulateComplete: Symbol('PopulateComplete')
 };
 
 
 /**
  * @interface
  */
 Profiler.HeapSnapshotGridNode.ChildrenProvider = function() {};
 
 Profiler.HeapSnapshotGridNode.ChildrenProvider.prototype = {
-  dispose: function() {},
+  dispose() {},
 
   /**
    * @param {number} snapshotObjectId
    * @return {!Promise<number>}
    */
-  nodePosition: function(snapshotObjectId) {},
+  nodePosition(snapshotObjectId) {},
 
   /**
    * @param {function(boolean)} callback
    */
-  isEmpty: function(callback) {},
+  isEmpty(callback) {},
 
   /**
    * @param {number} startPosition
    * @param {number} endPosition
    * @param {function(!Profiler.HeapSnapshotCommon.ItemsRange)} callback
    */
-  serializeItemsRange: function(startPosition, endPosition, callback) {},
+  serializeItemsRange(startPosition, endPosition, callback) {},
 
   /**
    * @param {!Profiler.HeapSnapshotCommon.ComparatorConfig} comparator
    * @return {!Promise<?>}
    */
-  sortAndRewind: function(comparator) {}
+  sortAndRewind(comparator) {}
 };
 
 /**
  * @unrestricted
  */
 Profiler.HeapSnapshotGenericObjectNode = class extends Profiler.HeapSnapshotGridNode {
   /**
    * @param {!Profiler.HeapSnapshotSortableDataGrid} dataGrid
    * @param {!Profiler.HeapSnapshotCommon.Node} node
    */
@@ skipping 959 matching lines @@
     return cell;
   }
 
   /**
    * @return {number}
    */
   allocationNodeId() {
     return this._allocationNode.id;
   }
 };