title: Execute script in specific frame
body: <p>I can only see how to execute a script in the top level frame or in all frames in a certain tab:</p>
  
  <pre><code>chrome.tabs.executeScript(integer tabId, object details, function callback)
  </code></pre>
  
  <p>Where if <code>details.allFrames</code> is <code>true</code> then it will be executed in each subframe, but if it is false, it will only execute in the top level frame.  How can I provide a <code>frameId</code> to execute the script in? </p>