title: Android L is ignoring shapes as drawable background
body: <p>I'm testing Android L Preview on my Nexus 5. I've got problem with my app.</p>
  
  <p>I've got some TextViews with background set:</p>
  
  <pre><code>android:background="@drawable/rounded_textview"
  </code></pre>
  
  <p>And "rounded_textview" is just shape. It is working great below &lt;=API19.</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle" android:padding="3dp"&gt;
  &lt;solid android:color="#999999"/&gt;
  &lt;corners
   android:bottomRightRadius="2dp"
   android:bottomLeftRadius="2dp"
   android:topLeftRadius="2dp"
   android:topRightRadius="2dp"/&gt;
  &lt;/shape&gt;
  </code></pre>
  
  <p>On Android L Developer Preview background is ignored. All my TextViews are transparent. 
  Any idea what am I doing wrong?</p>