Add AppWindow.setVisibleOnAllWorkspaces.

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. See the <a
 // href="https://github.com/GoogleChrome/chrome-app-samples/tree/master/window-state">
 // Window State Sample</a> for a demonstration of these options.
 namespace app.window {
@@ skipping 351 matching lines @@
     [nodoc] boolean? firstShowHasHappened;
 
     // Set whether the window should stay above most other windows. Requires the
     // <code>"alwaysOnTopWindows"</code> permission.
     static void setAlwaysOnTop(boolean alwaysOnTop);
 
     // Can the window use alpha transparency?
     // TODO(jackhou): Document this properly before going to stable.
     [nodoc] static boolean alphaEnabled();
 
+    // For platforms that support multiple workspaces, is this window on all of
+    // them?
+    [nodoc] static void setVisibleOnAllWorkspaces(boolean alwaysVisible);

[benwells, 2014/08/15 07:53:06]

Will there be matching create options?

Can we have a canSetVisi... function somewhere? I think it would be useful to
have this to allow apps to have options UIs to set this. That is they might have
an option to put their windows on all workspaces, but only show the option in
their UI if it is possible.

+
     // The JavaScript 'window' object for the created child.
     [instanceOf=Window] object contentWindow;
 
     // The id the window was created with.
     DOMString id;
 
     // The position, size and constraints of the window's content, which does
     // not include window decorations.
     // This property is new in Chrome 36.
     Bounds innerBounds;
@@ skipping 69 matching lines @@
     // Fired when the window is restored from being minimized or maximized.
     [nocompile] static void onRestored();
 
     // Fired when the window's ability to use alpha transparency changes.
     [nocompile, nodoc] static void onAlphaEnabledChanged();
 
     // Event for testing. Lets tests wait until a window has been shown.
     [nocompile, nodoc] static void onWindowFirstShown();
   };
 };