Reference Window State Sample from app.window documentation.

NOTRY=true

Review URL: https://codereview.chromium.org/303233008

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@273876 0039d316-1c4b-4281-b951-d872f2087c98

chrome/common/extensions/api/app_window.idl

@@ -4,7 +4,9 @@
 
 // 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.
+// 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 {
 
   // Previously named Bounds.