Proof of concept: Use a single FilterEngine instance

Shared/AdblockPlusClient.h

 #ifndef _SIMPLE_ADBLOCK_CLIENT_H_
 #define _SIMPLE_ADBLOCK_CLIENT_H_
 
 
 #include "PluginTypedef.h"
 #include "PluginClientBase.h"
 #include "AdblockPlus.h"
 
 
 using namespace AdblockPlus;
 
 class CPluginFilter;
 
 class CAdblockPlusClient : public CPluginClientBase
 {
 
 private:
 
   std::auto_ptr<CPluginFilter> m_filter;
   std::auto_ptr<AdblockPlus::FilterEngine> filterEngine;
+  HWND filterEngineRequestWindow;
+  HWND filterEngineResponseWindow;
+  std::wstring filterEngineResponseWindowName;
 
   CComAutoCriticalSection m_criticalSectionFilter;
   CComAutoCriticalSection m_criticalSectionCache;
 
   std::map<CString,bool> m_cacheBlockedSources;
 
 
   // Private constructor used by the singleton pattern
   CAdblockPlusClient();
 
 public:
 
   static CAdblockPlusClient* s_instance;
 
   ~CAdblockPlusClient();
 
   static CAdblockPlusClient* GetInstance();
 
   AdblockPlus::FilterEngine* GetFilterEngine();
 
   // Removes the url from the list of whitelisted urls if present
   // Only called from ui thread
   bool ShouldBlock(CString src, int contentType, const CString& domain, bool addDebug=false);
 
   bool IsElementHidden(const CString& tag, IHTMLElement* pEl, const CString& domain, const CString& indent, CPluginFilter* filter);
   bool IsUrlWhiteListed(const CString& url);
 
   int GetIEVersion();
 
+  bool Matches(const std::string& url, const std::string& contentType, const std::string& domain);
 };
 
 #endif // _SIMPLE_ADBLOCK_CLIENT_H_