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 34 matching lines @@
 {
   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)))
   {
     unescapedUrl.ReleaseBuffer();
     unescapedUrl.Truncate(cb);
 
@@ skipping 71 matching lines @@
 
       hasError = true;
 
       s_pluginErrors.erase(it);
     }
   }
   s_criticalSectionLocal.Unlock();
 
   return hasError;
 }
-
-// ============================================================================
-// Whitelisting
-// ============================================================================
-
-#ifdef SUPPORT_WHITELIST
-
-bool CPluginClientBase::IsUrlWhiteListed(const CString& url)
-{
-  if (url.IsEmpty())
-  {
-    return false;
-  }
-
-  int pos = 0;
-  CString scheme = url.Find('/',pos) >= 0 ? url.Tokenize(L"/", pos) : L"";
-  CString domain = ExtractDomain(url);
-  if (scheme == L"res:" || scheme == L"file:")
-  {
-    return true;
-  }
-
-  // TODO: Caching whitelist entries in PluginSettings is redundant and wasteful. We should have an engine call for IsWhitelistedDomain.
-  CPluginSettings* pluginSettings = CPluginSettings::GetInstance();
-  pluginSettings->RefreshWhitelist();
-  return pluginSettings->IsWhiteListedDomain(domain);
-}
-
-#endif // SUPPORT_WHITELIST