1 files changed, 6 insertions, 115 deletions

diff --git a/node_modules/object-keys/index.js b/node_modules/object-keys/index.js
index 3f2463eb8..a43807d2f 100644
--- a/node_modules/object-keys/index.js
+++ b/node_modules/object-keys/index.js
@@ -1,135 +1,26 @@
 'use strict';
 
-// modified from https://github.com/es-shims/es5-shim
-var has = Object.prototype.hasOwnProperty;
-var toStr = Object.prototype.toString;
 var slice = Array.prototype.slice;
 var isArgs = require('./isArguments');
-var isEnumerable = Object.prototype.propertyIsEnumerable;
-var hasDontEnumBug = !isEnumerable.call({ toString: null }, 'toString');
-var hasProtoEnumBug = isEnumerable.call(function () {}, 'prototype');
-var dontEnums = [
-	'toString',
-	'toLocaleString',
-	'valueOf',
-	'hasOwnProperty',
-	'isPrototypeOf',
-	'propertyIsEnumerable',
-	'constructor'
-];
-var equalsConstructorPrototype = function (o) {
-	var ctor = o.constructor;
-	return ctor && ctor.prototype === o;
-};
-var excludedKeys = {
-	$applicationCache: true,
-	$console: true,
-	$external: true,
-	$frame: true,
-	$frameElement: true,
-	$frames: true,
-	$innerHeight: true,
-	$innerWidth: true,
-	$outerHeight: true,
-	$outerWidth: true,
-	$pageXOffset: true,
-	$pageYOffset: true,
-	$parent: true,
-	$scrollLeft: true,
-	$scrollTop: true,
-	$scrollX: true,
-	$scrollY: true,
-	$self: true,
-	$webkitIndexedDB: true,
-	$webkitStorageInfo: true,
-	$window: true
-};
-var hasAutomationEqualityBug = (function () {
-	/* global window */
-	if (typeof window === 'undefined') { return false; }
-	for (var k in window) {
-		try {
-			if (!excludedKeys['$' + k] && has.call(window, k) && window[k] !== null && typeof window[k] === 'object') {
-				try {
-					equalsConstructorPrototype(window[k]);
-				} catch (e) {
-					return true;
-				}
-			}
-		} catch (e) {
-			return true;
-		}
-	}
-	return false;
-}());
-var equalsConstructorPrototypeIfNotBuggy = function (o) {
-	/* global window */
-	if (typeof window === 'undefined' || !hasAutomationEqualityBug) {
-		return equalsConstructorPrototype(o);
-	}
-	try {
-		return equalsConstructorPrototype(o);
-	} catch (e) {
-		return false;
-	}
-};
-
-var keysShim = function keys(object) {
-	var isObject = object !== null && typeof object === 'object';
-	var isFunction = toStr.call(object) === '[object Function]';
-	var isArguments = isArgs(object);
-	var isString = isObject && toStr.call(object) === '[object String]';
-	var theKeys = [];
-
-	if (!isObject && !isFunction && !isArguments) {
-		throw new TypeError('Object.keys called on a non-object');
-	}
 
-	var skipProto = hasProtoEnumBug && isFunction;
-	if (isString && object.length > 0 && !has.call(object, 0)) {
-		for (var i = 0; i < object.length; ++i) {
-			theKeys.push(String(i));
-		}
-	}
+var origKeys = Object.keys;
+var keysShim = origKeys ? function keys(o) { return origKeys(o); } : require('./implementation');
 
-	if (isArguments && object.length > 0) {
-		for (var j = 0; j < object.length; ++j) {
-			theKeys.push(String(j));
-		}
-	} else {
-		for (var name in object) {
-			if (!(skipProto && name === 'prototype') && has.call(object, name)) {
-				theKeys.push(String(name));
-			}
-		}
-	}
-
-	if (hasDontEnumBug) {
-		var skipConstructor = equalsConstructorPrototypeIfNotBuggy(object);
-
-		for (var k = 0; k < dontEnums.length; ++k) {
-			if (!(skipConstructor && dontEnums[k] === 'constructor') && has.call(object, dontEnums[k])) {
-				theKeys.push(dontEnums[k]);
-			}
-		}
-	}
-	return theKeys;
-};
+var originalKeys = Object.keys;
 
 keysShim.shim = function shimObjectKeys() {
 	if (Object.keys) {
 		var keysWorksWithArguments = (function () {
 			// Safari 5.0 bug
-			return (Object.keys(arguments) || '').length === 2;
+			var args = Object.keys(arguments);
+			return args && args.length === arguments.length;
 		}(1, 2));
 		if (!keysWorksWithArguments) {
-			var originalKeys = Object.keys;
 			Object.keys = function keys(object) { // eslint-disable-line func-name-matching
 				if (isArgs(object)) {
 					return originalKeys(slice.call(object));
-				} else {
-					return originalKeys(object);
 				}
+				return originalKeys(object);
 			};
 		}
 	} else {