title: set a new context to WebView
body: <p>Is there any way to change the context of WebView?
  I mean, when I extend the WebView class I call the super constructor with a context (in my example an activity). Later on, this activity is no longer exists and we move to other activity.</p>
  
  <p>The problem is the WebView is still alive and has a reference to this context.
  I can't create my WebView any time because the initialisation is long.
  I tried to call the super class with getApplicationContext() but I found that this also problematic for displaying videos.</p>
  
  <p>What can I do in order to set the WebView's context without create a new one.</p>
  
  <p>Thanks.</p>