Issue #3343 - Eliminate unescaping of URL

src/plugin/PluginUtil.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 34 matching lines @@
 
 std::wstring GetLocationUrl(IWebBrowser2& browser)
 {
   ATL::CComBSTR locationUrl;
   if (FAILED(browser.get_LocationURL(&locationUrl)) || !locationUrl)
   {
     return std::wstring();
   }
   return std::wstring(locationUrl, locationUrl.Length());
 }
-
-void UnescapeUrl(std::wstring& url)
-{
-  try
-  {
-    DWORD result_length = INTERNET_MAX_URL_LENGTH;
-    std::unique_ptr<wchar_t[]> result(new wchar_t[result_length]);
-    HRESULT hr = UrlUnescapeW(const_cast<wchar_t*>(url.c_str()), result.get(), &result_length, 0);
-    if (hr == S_OK)
-    {
-      url = std::wstring(result.get(), result_length);
-    }
-    /*
-     * Do nothing. This masks error return values from UrlUnescape without logging the error.
-     */
-  }
-  catch(std::bad_alloc e)
-  {
-    /*
-     * When the code has a systematic way of handling bad_alloc, we'll rethrow (probably).
-     * Until then, we mask the exception and make no modification.
-     */
-  }
-  catch(...)
-  {
-    // no modification if any other exception
-  }
-}