Promote chrome.app.window alwaysOnTop property to stable unwhitelisted

chrome/common/extensions/api/app_window.idl

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // Use the <code>chrome.app.window</code> API to create windows. Windows
 // have an optional frame with title bar and size controls. They are not
 // associated with any Chrome browser windows.
 namespace app.window {
   dictionary Bounds {
     long? left;
@@ skipping 91 matching lines @@
     // If you do want to create multiple windows with the same id, you can
     // set this property to false.
     [deprecated="Multiple windows with the same id is no longer supported."] boolean? singleton;
 
     // If true, the window will stay above most other windows. If there are
     // multiple windows of this kind, the currently focused window will be in
     // the foreground. Requires the <code>"alwaysOnTopWindows"</code>
     // permission. Defaults to false.<br>
     // Call <code>setAlwaysOnTop()</code> on the window to change this property
     // after creation.<br>
-    // Currently only available on Dev channel.
     boolean? alwaysOnTop;
 
     // If true, the window will be focused when created. Defaults to true.
     boolean? focused;
   };
 
   // Called in the creating window (parent) before the load event is called in
   // the created window (child). The parent can set fields or functions on the
   // child usable from onload. E.g. background.js:<br>
   // <code>function(createdWindow) { createdWindow.contentWindow.foo =
@@ skipping 97 matching lines @@
     // Set the app icon for the window (experimental).
     // Currently this is only being implemented on Ash.
     // TODO(stevenjb): Investigate implementing this on Windows and OSX.
     [nodoc] static void setIcon(DOMString iconUrl);
 
     // Is the window always on top?
     static boolean isAlwaysOnTop();
 
     // Set whether the window should stay above most other windows. Requires the
     // <code>"alwaysOnTopWindows"</code> permission.
-    // Currently only available on Dev channel.
     static void setAlwaysOnTop(boolean alwaysOnTop);
 
     // The JavaScript 'window' object for the created child.
     [instanceOf=Window] object contentWindow;
 
     // The id the window was created with.
     DOMString id;
   };
 
   interface Functions {
@@ skipping 48 matching lines @@
     // Fired when the window is maximized.
     [nocompile] static void onMaximized();
 
     // Fired when the window is minimized.
     [nocompile] static void onMinimized();
 
     // Fired when the window is restored from being minimized or maximized.
     [nocompile] static void onRestored();
   };
 };