DevTools: introduce WI.Resource.contentSize() and WI.Resource.lastModified()

third_party/WebKit/Source/devtools/front_end/platform/utilities.js

 /*
  * Copyright (C) 2007 Apple Inc.  All rights reserved.
  * Copyright (C) 2012 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 390 matching lines @@
  */
 Number.toFixedIfFloating = function(value)
 {
     if (!value || isNaN(value))
         return value;
     var number = Number(value);
     return number % 1 ? number.toFixed(3) : String(number);
 }
 
 /**
+ * @return {boolean}
+ */
+Date.prototype.isValid = function()
+{
+    return !isNaN(this.getTime())
+}
+
+/**
  * @return {string}
  */
 Date.prototype.toISO8601Compact = function()
 {
     /**
      * @param {number} x
      * @return {string}
      */
     function leadZero(x)
     {
@@ skipping 1111 matching lines @@
     while (rightIndex < rightKeys.length) {
         var rightKey = rightKeys[rightIndex++];
         added.push(other.get(rightKey));
     }
     return {
         added: added,
         removed: removed,
         equal: equal
     }
 }