DevTools: Add timestamp support in the console

Source/devtools/front_end/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 352 matching lines @@
         return (x > 9 ? "" : "0") + x;
     }
     return this.getFullYear() +
            leadZero(this.getMonth() + 1) +
            leadZero(this.getDate()) + "T" +
            leadZero(this.getHours()) +
            leadZero(this.getMinutes()) +
            leadZero(this.getSeconds());
 }
 
+/**
+ * @return {string}
+ */
+ Date.prototype.toConsoleTime = function()
+{
+    /**
+     * @param {number} x
+     * @return {string}
+     */
+    function leadZero2(x)
+    {
+        return (x > 9 ? "" : "0") + x;
+    }
+
+    /**
+     * @param {number} x
+     * @return {string}
+     */
+    function leadZero3(x)
+    {
+        return (Array(4 - x.toString().length)).join('0') + x;
+    }
+
+    return this.getFullYear() + "-" +
+           leadZero2(this.getMonth() + 1) + "-" +
+           leadZero2(this.getDate()) + " " +
+           leadZero2(this.getHours()) + ":" +
+           leadZero2(this.getMinutes()) + ":" +
+           leadZero2(this.getSeconds()) + "." +
+           leadZero3(this.getMilliseconds());
+}
+
 Object.defineProperty(Array.prototype, "remove",
 {
     /**
      * @param {!T} value
      * @param {boolean=} firstOnly
      * @this {Array.<!T>}
      * @template T
      */
     value: function(value, firstOnly)
     {
@@ skipping 1144 matching lines @@
             this._outgoingCallback();
     }
 }
 
 /**
  * @param {*} value
  */
 function suppressUnused(value)
 {
 }