function DraftEditorContents() {
	    _classCallCheck(this, DraftEditorContents);

	    return _possibleConstructorReturn(this, _React$Component.apply(this, arguments));
	  }
`DraftEditorContents` is the container component for all block components
rendered for a `DraftEditor`. It is optimized to aggressively avoid
re-rendering blocks whenever possible.

This component is separate from `DraftEditor` because certain props
(for instance, ARIA props) must be allowed to update without affecting
the contents of the editor.