title: Remove default drop shadow at top of activity layout?
body: <p>I have an activity. It does not have a title bar. The content view is just a linear layout. It looks like android draws a drop shadow at the top of my content view, directly below the status bar. Is there a way to stop that from being drawn?</p>
  
  <p>My layout is just:</p>
  
  <pre><code>&lt;LinearLayout ... /&gt;
  </code></pre>
  
  <p>I have no titlebar:</p>
  
  <pre><code>requestWindowFeature(Window.FEATURE_NO_TITLE);
  </code></pre>
  
  <p>Thanks.</p>