[DevTools] Fix compiler errors in bindings module

third_party/WebKit/Source/devtools/front_end/sdk/CSSStyleModel.js

 /*
  * Copyright (C) 2010 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 788 matching lines @@
     },
 }
 
 /**
  * @constructor
  * @param {!WebInspector.CSSStyleModel} cssModel
  */
 WebInspector.CSSStyleModel.ComputedStyleLoader = function(cssModel)
 {
     this._cssModel = cssModel;
-    /** @type {!Map.<!DOMAgent.NodeId, !Promise.<?WebInspector.CSSStyleDeclaration>>} */
+    /** @type {!Map<!DOMAgent.NodeId, !Promise<?Map<string, string>>>} */
     this._nodeIdToPromise = new Map();
 }
 
 WebInspector.CSSStyleModel.ComputedStyleLoader.prototype = {
     /**
      * @param {!DOMAgent.NodeId} nodeId
-     * @return {!Promise.<?Map.<string, string>>}
+     * @return {!Promise<?Map<string, string>>}
      */
     computedStylePromise: function(nodeId)
     {
-        if (!this._nodeIdToPromise[nodeId])
-            this._nodeIdToPromise[nodeId] = this._cssModel._agent.getComputedStyleForNode(nodeId, parsePayload).then(cleanUp.bind(this));
+        if (!this._nodeIdToPromise.has(nodeId))
+            this._nodeIdToPromise.set(nodeId, this._cssModel._agent.getComputedStyleForNode(nodeId, parsePayload).then(cleanUp.bind(this)));
 
-        return this._nodeIdToPromise[nodeId];
+        return /** @type {!Promise.<?Map.<string, string>>} */(this._nodeIdToPromise.get(nodeId));
 
         /**
          * @param {?Protocol.Error} error
          * @param {!Array.<!CSSAgent.CSSComputedStyleProperty>} computedPayload
          * @return {?Map.<string, string>}
          */
         function parsePayload(error, computedPayload)
         {
             if (error || !computedPayload || !computedPayload.length)
                 return null;
             var result = new Map();
             for (var property of computedPayload)
                 result.set(property.name, property.value);
             return result;
         }
 
         /**
          * @param {?Map.<string, string>} computedStyle
          * @return {?Map.<string, string>}
          * @this {WebInspector.CSSStyleModel.ComputedStyleLoader}
          */
         function cleanUp(computedStyle)
         {
-            delete this._nodeIdToPromise[nodeId];
+            this._nodeIdToPromise.delete(nodeId);
             return computedStyle;
         }
     }
 }
 
 /**
  * @param {!WebInspector.Target} target
  * @return {?WebInspector.CSSStyleModel}
  */
 WebInspector.CSSStyleModel.fromTarget = function(target)
@@ skipping 15 matching lines @@
 /**
  * @constructor
  * @param {?WebInspector.CSSStyleDeclaration} inlineStyle
  * @param {?WebInspector.CSSStyleDeclaration} attributesStyle
  */
 WebInspector.CSSStyleModel.InlineStyleResult = function(inlineStyle, attributesStyle)
 {
     this.inlineStyle = inlineStyle;
     this.attributesStyle = attributesStyle;
 }