Fix domain whitelisting and remove unused code

src/plugin/PluginClientBase.cpp

 #include "PluginStdAfx.h"
 
 // Internet / FTP
 #include <wininet.h>
 
 // IP adapter
 #include <iphlpapi.h>
 
 #include "PluginSettings.h"
 #include "PluginSystem.h"
@@ skipping 31 matching lines @@
 
 
 bool CPluginClientBase::IsValidDomain(const CString& domain)
 {
   return domain != ABPDOMAIN &&
     domain != USERS_HOST &&
     domain != L"about:blank" &&
     domain != L"about:tabs" &&
     domain.Find(L"javascript:") != 0 &&
     !domain.IsEmpty();
-}
-
-
-CString CPluginClientBase::ExtractDomain(const CString& url)
-{
-  int pos = 0;
-  CString http = url.Find('/',pos) >= 0 ? url.Tokenize(L"/", pos) : L"";
-  CString domain = url.Tokenize(L"/", pos);
-
-  domain.MakeLower();
-
-  return domain;
 }
 
 
 CString& CPluginClientBase::UnescapeUrl(CString& url)
 {
   CString unescapedUrl;
   DWORD cb = 2048;
 
   if (SUCCEEDED(::UrlUnescape(url.GetBuffer(), unescapedUrl.GetBufferSetLength(cb), &cb, 0)))
   {
@@ skipping 74 matching lines @@
 
       hasError = true;
 
       s_pluginErrors.erase(it);
     }
   }
   s_criticalSectionLocal.Unlock();
 
   return hasError;
 }