Issue #1466 - fix usage of BSTR

src/plugin/AdblockPlusDomTraverser.cpp

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 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 48 matching lines @@
   {
     HideElement(pEl, tag, L"", false, indent);
     return false;
   }
 
   // Images
   if (tag == "img")
   {
     CComVariant vAttr;
 
-    if (SUCCEEDED(pEl->getAttribute(L"src", 0, &vAttr)) && vAttr.vt == VT_BSTR && ::SysStringLen(vAttr.bstrVal) > 0)
+    if (SUCCEEDED(pEl->getAttribute(ATL::CComBSTR(L"src"), 0, &vAttr)) && vAttr.vt == VT_BSTR && ::SysStringLen(vAttr.bstrVal) > 0)
     {
       std::wstring src(vAttr.bstrVal, SysStringLen(vAttr.bstrVal));
       UnescapeUrl(src);
 
       // If src should be blocked, set style display:none on image
       cache->m_isHidden = client->ShouldBlock(src, CFilter::contentTypeImage, m_domain);
       if (cache->m_isHidden)
       {
         HideElement(pEl, "image", src, true, indent);
         return false;
@@ skipping 72 matching lines @@
 
 #ifdef ENABLE_DEBUG_RESULT
         if (isDebug)
         {
           CPluginDebug::DebugResultHiding(type, ToCString(url), "-");
         }
 #endif // ENABLE_DEBUG_RESULT
     }
   }
 }