Disable delete button if selected node is not associated with any cookie object

third_party/WebKit/Source/devtools/front_end/resources/CookieItemsView.js

 /*
  * Copyright (C) 2009 Apple Inc.  All rights reserved.
  * Copyright (C) 2009 Joseph Pecoraro
  *
  * 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 71 matching lines @@
   }
 
   /**
    * @param {!Array.<!SDK.Cookie>} allCookies
    */
   _updateWithCookies(allCookies) {
     this._totalSize = allCookies.reduce((size, cookie) => size + cookie.size(), 0);
 
     if (!this._cookiesTable) {
       this._cookiesTable = new CookieTable.CookiesTable(
-          this._saveCookie.bind(this), this.refreshItems.bind(this), () => this.setCanDeleteSelected(true),
+          this._saveCookie.bind(this),
+          this.refreshItems.bind(this),
+          () => this.setCanDeleteSelected(!!this._cookiesTable.selectedCookie()),
           this._deleteCookie.bind(this));
     }
 
     const parsedURL = this._cookieDomain.asParsedURL();
     const host = parsedURL ? parsedURL.host : '';
     this._cookiesTable.setCookieDomain(host);
 
     var shownCookies = this.filter(allCookies, cookie => `${cookie.name()} ${cookie.value()} ${cookie.domain()}`);
     this._cookiesTable.setCookies(shownCookies);
     this._cookiesTable.show(this.element);
@@ skipping 18 matching lines @@
       this._model.deleteCookie(selectedCookie, () => this.refreshItems());
   }
 
   /**
    * @override
    */
   refreshItems() {
     this._model.getCookiesForDomain(this._cookieDomain, cookies => this._updateWithCookies(cookies));
   }
 };