anchor.diff:  
   import 'dart:async';
   import 'dart:convert';
  +import 'dart:js' as js;
   
   import 'package:chrome/chrome_app.dart' as chrome;
   import 'package:chrome_net/tcp.dart';
  
positive.code:       _logger.info('deploying application via ADB over USB');
  
        // No server found, so use our own USB code.
        return _pushViaUSB(monitor);
      });
    }
  
  
negative.code:     return _device.sendHttpRequest(httpRequest, DEPLOY_PORT, timeout);
    }
  
    void addToKnownDevices(DeviceInfo info) {
      _knownDevices = [info];
    }
  
    String _getTarget() {
      return TARGET;
    }
  