DevTools: Fix wrong is-array-like detection when logging in console.

Source/core/inspector/InjectedScriptSource.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2013 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:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
@@ skipping 93 matching lines @@
  * @template T
  */
 function nullifyObjectProto(obj)
 {
     if (obj && typeof obj === "object")
         obj.__proto__ = null;
     return obj;
 }
 
 /**
+ * FireBug's array detection.
+ * @param {*} obj
+ * @return {boolean}
+ */
+function isArrayLike(obj)
+{
+    try {
+        if (typeof obj !== "object")
+            return false;
+        if (typeof obj.splice === "function")
+            return isFinite(obj.length);
+        var str = Object.prototype.toString.call(obj);
+        if (str === "[object Array]" ||
+            str === "[object Arguments]" ||
+            str === "[object HTMLCollection]" ||
+            str === "[object NodeList]" ||
+            str === "[object DOMTokenList]")
+            return isFinite(obj.length);
+    } catch (e) {
+    }
+    return false;
+}
+
+/**
  * @constructor
  */
 var InjectedScript = function()
 {
     /** @type {number} */
     this._lastBoundObjectId = 1;
     /** @type {!Object.<number, Object>} */
     this._idToWrappedObject = { __proto__: null };
     /** @type {!Object.<number, string>} */
     this._idToObjectGroupName = { __proto__: null };
@@ skipping 762 matching lines @@
         if (this.isPrimitiveValue(obj))
             return null;
 
         if (this._isHTMLAllCollection(obj))
             return "array";
 
         var preciseType = InjectedScriptHost.type(obj);
         if (preciseType)
             return preciseType;
 
-        // FireBug's array detection.
-        try {
-            if (typeof obj.splice === "function" && isFinite(obj.length))
-                return "array";
-            if (Object.prototype.toString.call(obj) === "[object Arguments]" && isFinite(obj.length)) // arguments.
-                return "array";
-        } catch (e) {
-        }
+        if (isArrayLike(obj))
+            return "array";
 
         // If owning frame has navigated to somewhere else window properties will be undefined.
         return null;
     },
 
     /**
      * @param {*} obj
      * @return {string?}
      */
     _describe: function(obj)
@@ skipping 640 matching lines @@
      */
     _logEvent: function(event)
     {
         inspectedWindow.console.log(event.type, event);
     }
 }
 
 injectedScript._commandLineAPIImpl = new CommandLineAPIImpl();
 return injectedScript;
 })