title: Cannot load pepper flash plugin in QtWebEngine with Qt5.6
body: <p>I made a simple web browser but when I access to </p>
  
  <p><a href="https://get.adobe.com/jp/flashplayer/" rel="nofollow">https://get.adobe.com/jp/flashplayer/</a></p>
  
  <p>It says</p>
  
  <pre><code>Adobe Flash Player is already installed, but disabled
  </code></pre>
  
  <p>However as I read <a href="http://doc.qt.io/qt-5/qtwebengine-platform-notes.html" rel="nofollow">http://doc.qt.io/qt-5/qtwebengine-platform-notes.html</a>
  It says that pepper flash plugin should be automatically loaded if there is a proper dll file. I checked my C:\Windows\System32\Macromed\Flash\ and I'm sure that I have a pepflashplayer32_21_0_0_213.dll there.</p>
  
  <p>Then I also set</p>
  
  <pre><code>QWebEngineSettings *websetting = QWebEngineSettings::defaultSettings();
  websetting-&gt;setAttribute(QWebEngineSettings::PluginsEnabled, true);
  </code></pre>
  
  <p>but still no hopes.
  Anyone knows how to enable flash with QtWebEngine?</p>