Issue 6994 - Use shortcut matching for location-only filters

lib/filterClasses.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 835 matching lines @@
     {
       let index = location.indexOf(pattern.substring(2));
 
       // The "||" prefix requires that the text that follows does not start
       // with a forward slash.
       return index != -1 && location[index] != "/" &&
              doubleAnchorRegExp.test(location.substring(0, index));
     }
 
     return location.includes(pattern);
+  },
+
+  /**
+   * Checks whether this filter has only a URL pattern and no content type,
+   * third-party flag, domains, or sitekeys.
+   * @returns {boolean}
+   */
+  isLocationOnly()
+  {
+    return this.contentType == RegExpFilter.prototype.contentType &&
+           this.thirdParty == null &&
+           !this.domainSource && !this.sitekeySource &&
+           !this.domains && !this.sitekeys;
   }
 });
 
 /**
  * Yields the filter itself (required to optimize {@link Matcher}).
  * @yields {RegExpFilter}
  */
 RegExpFilter.prototype[Symbol.iterator] = function*()
 {
   yield this;
@@ skipping 474 matching lines @@
 
   /**
    * Script that should be executed
    * @type {string}
    */
   get script()
   {
     return this.body;
   }
 });