title: onContentSizeChange not firing on height change on Android (react-native)
body: <p><code>onContentSizeChange</code> doesn't seem to fire properly on Android. Event is fired on <code>mount</code>, but isn't fired on <code>text height</code> change. Identical code works fine for iOS:</p>
  
  <pre><code>&lt;TextInput
    editable = {true}
    multiline = {true}
    [...]
    onContentSizeChange={(event) =&gt; {
    this.setState({height: event.nativeEvent.contentSize.height});
    }}
    style={{height: Math.max(35, this.state.height)}}
  /&gt;
  </code></pre>