Issue 1201 - Enabling/disabling ABP everywhere applies only in the next opened tab

src/plugin/PluginMimeFilterClient.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 72 matching lines @@
       m_spCFHTTP = NULL;
     }
     spSession->UnregisterNameSpace(m_spCFHTTPS, L"https");
     if (m_spCFHTTPS != NULL)
     {
       m_spCFHTTPS.Release();
       m_spCFHTTPS = NULL;
     }
 
   }
-}
-
-void CPluginMimeFilterClient::Unregister()

[Eric, 2015/03/27 13:35:50]

I'll say I do agree with removing any kind of separate function like
Unregister(). Unregistering should be managed only through the destructor, which
means better managing the life cycle of 'CPluginMimeFilterClient'.

-{
-  CComPtr<IInternetSession> spSession;
-
-  ::CoInternetGetSession(0, &spSession, 0);
-  if (spSession)
-  {
-    spSession->UnregisterNameSpace(m_spCFHTTP, L"http");
-    spSession->UnregisterNameSpace(m_spCFHTTPS, L"https");
-  }
-}
+}