title: How to use chrome-app.d.ts type in angular-cli 1.0.1 app?
body: <p>I've installed <strong>@types/chrome</strong> and add it in <strong>tsconfig.app.json</strong></p>
  
  <pre><code>"types": [
    "chrome"
  ]
  </code></pre>
  
  <p>But when i use <code>chrome.app</code> in component, it show an error:</p>
  
  <blockquote>
    <p>Property 'app' does not exist on type 'typeof chrome'</p>
  </blockquote>
  
  <p><strong>@types/chrome</strong> folder contains <strong>chrome-app.d.ts</strong> is a file which i need, how can I refer to this</p>
  
  <p>Source <a href="https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/chrome" rel="noreferrer">https://github.com/DefinitelyTyped/DefinitelyTyped/tree/master/types/chrome</a></p>