Noissue - fix typo "dowload" to "download" (n is absent)

include/AdblockPlus/FilterEngine.h

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2017 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 258 matching lines @@
       /**
        * `AdblockPlus::FilterEngine::Prefs` name - value list of preconfigured
        * prefs.
        */
       Prefs preconfiguredPrefs;
       /**
        * A callback of `AdblockPlus::FilterEngine::IsConnectionAllowedAsyncCallback` type
        * checking whether the request to download a subscription from Adblock Plus may be performed
        * on the current connection.
        */
-      IsConnectionAllowedAsyncCallback isSubscriptionDowloadAllowedCallback;
+      IsConnectionAllowedAsyncCallback isSubscriptionDownloadAllowedCallback;
     };
 
     /**
     * Callback type invoked when FilterEngine is created.
     */
     typedef std::function<void(const FilterEnginePtr&)> OnCreatedCallback;
 
     /**
      * Asynchronously constructs FilterEngine.
      * @param jsEngine `JsEngine` instance used to run JavaScript code
@@ skipping 283 matching lines @@
     void FilterChanged(const FilterChangeCallback& callback, JsValueList&& params) const;
     FilterPtr GetWhitelistingFilter(const std::string& url,
       ContentTypeMask contentTypeMask, const std::string& documentUrl) const;
     FilterPtr GetWhitelistingFilter(const std::string& url,
       ContentTypeMask contentTypeMask,
       const std::vector<std::string>& documentUrls) const;
   };
 }
 
 #endif