Issues #696,1231,1264,1265 - Improve handling in PassthroughApp

src/plugin/PluginTabBase.cpp

 #include "PluginStdAfx.h"
 
 #include "PluginClient.h"
 #include "PluginSettings.h"
 #include "PluginTab.h"
 #include "AdblockPlusDomTraverser.h"
 #include "PluginClass.h"
 #include "PluginTabBase.h"
 #include "PluginUtil.h"
 #include <dispex.h>
@@ skipping 190 matching lines @@
     pOleObj->GetClientSite(&pClientSite);
     if (pClientSite != NULL)
     {
       CComPtr<IDocHostUIHandler> docHostUIHandler;
       pClientSite->QueryInterface(IID_IDocHostUIHandler, (void**)&docHostUIHandler);
       if (docHostUIHandler != NULL)
       {
         docHostUIHandler->UpdateUI();
       }
     }
-
-    pDoc.Release();
-    pDocDispatch.Release();
   }
 }
 
 std::wstring CPluginTabBase::GetDocumentDomain()
 {
   std::wstring domain;
 
   m_criticalSection.Lock();
   {
     domain = m_documentDomain;
@@ skipping 126 matching lines @@
           CPluginClient::LogPluginError(pluginError.GetErrorCode(), pluginError.GetErrorId(), pluginError.GetErrorSubid(), pluginError.GetErrorDescription(), true, pluginError.GetProcessId(), pluginError.GetThreadId());
         }
 
         // Non-hanging sleep
         Sleep(50);
       }
 
       tabLoopIteration++;
   }
 }