title: Padding the actionbar "up" indicator image
body: <p>I'm in search of a way to style the ActionBar's "up" icon that is displayed when you configured it to be displayed from your Activity : </p>
  
  <pre><code>getSupportActionBar().setDisplayHomeAsUpEnabled(true);
  </code></pre>
  
  <p>I've been looking around and found a way to add padding between the home icon and the title (<a href="https://stackoverflow.com/questions/9737101/padding-between-actionbars-home-icon-and-title">Padding between ActionBar's home icon and title</a>), but not a way to add padding between the home icon and the up indicator icon.</p>
  
  <p>I dug into <code>ActionBarView.HomeView</code> in the android source and it appears to inflate the up indicator via this call : </p>
  
  <pre><code>mUpView = findViewById(com.android.internal.R.id.up);
  </code></pre>
  
  <p>Problem is the <code>com.android.internal.R.id.up</code> is internal so I can't access it, so the above linked solution for padding the home icon won't work.  Ideally I'd like to override the <code>ActionBarView.HomeView</code>, but it's private within the <code>ActionBarView</code>.</p>
  
  <p>Does anyone know if ActionBarSherlock provides a good way to override this behavior?  I've looked into providing a custom home layout, but the threads I found indicated that it wouldn't be a good idea to diverge from the standard android classes.</p>
  
  <p>Any ideas?</p>