Implementation of the "Redirect URLs to Packaged Apps" feature.

chrome/common/extensions/api/app_runtime.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.
 
 namespace app.runtime {
 
   [inline_doc] dictionary LaunchItem {
     // FileEntry for the file.
     [instanceOf=FileEntry] object entry;
 
     // The MIME type of the file.
     DOMString type;
   };
 
   // Optional data for the launch.
   [inline_doc] dictionary LaunchData {
-    // The id of the file handler that the app is being invoked with.
+    // The id of the file or URL handler that the app is being invoked with.
     DOMString? id;
 
+    // Option 1: the file enries for onLaunched corresponding to a file
+    // handler (file_handlers in the manifest).
     LaunchItem[]? items;
+
+    // Option 2: the URL and referrer's URL for onLaunched corresponding to
+    // a URL handler (url_handlers in the manifest).
+    DOMString? url;
+    DOMString? referrerUrl;

[not at google - send to devlin, 2013/08/19 23:32:24]

The docs are going to be generated by this; numbering the "options" and grouping
them with whitespace isn't going to look right.

[sergeygs, 2013/08/29 08:24:42]

Done.

   };
 
   interface Events {
     // Fired when an app is launched from the launcher.
     static void onLaunched(optional LaunchData launchData);
 
     // Fired at Chrome startup to apps that were running when Chrome last shut
     // down.
     static void onRestarted();
   };
 };