old_contents: /* @flow */
  
  import React, {Component, PropTypes} from 'react';
  
  import Enhancer from '../enhancer';
  import StyleKeeper from '../style-keeper';
  import StyleSheet from './style-sheet';
  
  function _getStyleKeeper(instance): StyleKeeper {
    if (!instance._radiumStyleKeeper) {
      const userAgent = (
        instance.props.radiumConfig && instance.props.radiumConfig.userAgent
      ) || (
        instance.context._radiumConfig && instance.context._radiumConfig.userAgent
      );
      instance._radiumStyleKeeper = new StyleKeeper(userAgent);
    }
  
    return instance._radiumStyleKeeper;
  }
  
  class StyleRoot extends Component {
    constructor() {
      super(...arguments);
  
      _getStyleKeeper(this);
    }
  
    getChildContext() {
      return {_radiumStyleKeeper: _getStyleKeeper(this)};
    }
  
    render() {
      return (
        <div {...this.props}>
          {this.props.children}
          <StyleSheet />
        </div>
      );
    }
  }
  
  StyleRoot.contextTypes = {
    _radiumConfig: PropTypes.object,
    _radiumStyleKeeper: PropTypes.instanceOf(StyleKeeper)
  };
  
  StyleRoot.childContextTypes = {
    _radiumStyleKeeper: PropTypes.instanceOf(StyleKeeper)
  };
  
  StyleRoot = Enhancer(StyleRoot);
  
  export default StyleRoot;
  
new_contents: /* @flow */
  
  import React, {Component, PropTypes} from 'react';
  
  import Enhancer from '../enhancer';
  import StyleKeeper from '../style-keeper';
  import StyleSheet from './style-sheet';
  
  function _getStyleKeeper(instance): StyleKeeper {
    if (!instance._radiumStyleKeeper) {
      const userAgent = (
        instance.props.radiumConfig && instance.props.radiumConfig.userAgent
      ) || (
        instance.context._radiumConfig && instance.context._radiumConfig.userAgent
      );
      instance._radiumStyleKeeper = new StyleKeeper(userAgent);
    }
  
    return instance._radiumStyleKeeper;
  }
  
  class StyleRoot extends Component {
    constructor() {
      super(...arguments);
  
      _getStyleKeeper(this);
    }
  
    getChildContext() {
      return {_radiumStyleKeeper: _getStyleKeeper(this)};
    }
  
    render() {
      /* eslint-disable no-unused-vars */
      // Pass down all props except config to the rendered div.
      const {radiumConfig, ...otherProps} = this.props;
      /* eslint-enable no-unused-vars */
  
      return (
        <div {...otherProps}>
          {this.props.children}
          <StyleSheet />
        </div>
      );
    }
  }
  
  StyleRoot.contextTypes = {
    _radiumConfig: PropTypes.object,
    _radiumStyleKeeper: PropTypes.instanceOf(StyleKeeper)
  };
  
  StyleRoot.childContextTypes = {
    _radiumStyleKeeper: PropTypes.instanceOf(StyleKeeper)
  };
  
  StyleRoot = Enhancer(StyleRoot);
  
  export default StyleRoot;
  
subject: Stop passing radiumConfig prop to div