Issue #2230 - Refactor filter life cycle and use

src/plugin/PluginFilter.h

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2016 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 101 matching lines @@
   CFilter(const CFilter&);
   CFilter();
 };
 
 // ============================================================================
 // CPluginFilter
 // ============================================================================
 
 class CPluginFilter
 {
-
-private:
-
-  std::wstring m_dataPath;
-
   // (Tag,Name) -> Filter
   typedef std::multimap<std::pair<std::wstring, std::wstring>, CFilterElementHide> TFilterElementHideTagsNamed;
-
   // Tag -> Filter
   typedef std::multimap<std::wstring, CFilterElementHide> TFilterElementHideTags;
-
-
   TFilterElementHideTagsNamed m_elementHideTagsId;
   TFilterElementHideTagsNamed m_elementHideTagsClass;
   TFilterElementHideTags m_elementHideTags;
-
   void ClearFilters();
 
 public:
-  CPluginFilter(const std::wstring& dataPath = L"");
+  CPluginFilter();
   bool LoadHideFilters(std::vector<std::wstring> filters);
   bool AddFilterElementHide(std::wstring filter);
   bool IsElementHidden(const std::wstring& tag, IHTMLElement* pEl, const std::wstring& domain, const std::wstring& indent) const;
   HANDLE hideFiltersLoadedEvent;
 };
 
 
 #endif // _PLUGIN_FILTER_H_