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

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

 /*
  * 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:
  *
  *     * 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 783 matching lines @@
      * @return {!Array.<!WebInspector.Cookie>}
      */
     get responseCookies()
     {
         if (!this._responseCookies)
             this._responseCookies = WebInspector.CookieParser.parseSetCookie(this.target(), this.responseHeaderValue("Set-Cookie"));
         return this._responseCookies;
     },
 
     /**
+     * @return {string|undefined}
+     */
+    responseLastModified: function()
+    {
+        return this.responseHeaderValue("last-modified");
+    },
+
+    /**
      * @return {?Array.<!WebInspector.ServerTiming>}
      */
     get serverTimings()
     {
         if (typeof this._serverTimings === "undefined")
             this._serverTimings = WebInspector.ServerTiming.parseHeaders(this.responseHeaders);
         return this._serverTimings;
     },
 
     /**
@@ skipping 440 matching lines @@
     /**
      * @return {!WebInspector.NetworkManager}
      */
     networkManager: function()
     {
         return this._networkManager;
     },
 
     __proto__: WebInspector.SDKObject.prototype
 }