old_contents: 
  module.exports = function(config) {
    config.set({
      basePath: '',
      frameworks: ['mocha', 'browserify'],
      files: [
        'test/setup.js',
        'app/**/*.js'
      ],
      preprocessors: {
        'test/setup.js': ['browserify'],
        'app/**/*.js': ['browserify']
      },
      browserify: {
        bare: true,
        debug: true
      },
      reporters: ['spec'],
      port: 9876,
      colors: true,
      logLevel: config.LOG_INFO,
      autoWatch: true,
      browsers: ['ChromeCanary'],
      singleRun: false
    });
  };
  
new_contents: 
  module.exports = function(config) {
    config.set({
      basePath: '',
      frameworks: ['mocha', 'browserify'],
      files: [
        'test/setup.js',
        'app/**/*.js'
      ],
      preprocessors: {
        'test/setup.js': ['browserify'],
        'app/**/*.js': ['browserify']
      },
      browserify: {
        bare: true,
        debug: true
      },
      reporters: ['spec'],
      port: 9876,
      colors: true,
      logLevel: config.LOG_INFO,
      autoWatch: true,
      browsers: ['Chrome'],
      singleRun: false
    });
  };
  
subject: Use chrome