title: How can I show/hide tab or navigation buttons of chrome by extension command?
body: <p>I am using chrome 47.0.2526.106 m (64-bit) on Win7 .</p>
  
  <p>When I open a window by <code>window.open()</code> from JavaScript command, the popup style window opens.</p>
  
  <p>That window does not have tab, bookmark bar nor navigation buttons . It has an address bar only. 
  Then I mouse click upper left corner of the title bar, the pull down menu is opened.</p>
  
  <p>In the menu, there is an item "show as tab" and I executed it.
  Then the popup window became chrome normal window style that has tab, bookmark bar and navigation buttons.</p>
  
  <p>My question is, how can I do this style change by chrome extension API commands? I looked around <code>chrome.windows</code> or <code>chrome.tabs</code> APIs, but I could not find the command.</p>