Allow passing parameters within appview

extensions/common/api/app_runtime.idl

 // Copyright 2014 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.runtime</code> API to manage the app lifecycle.
 // The app runtime manages app installation, controls the event page, and can
 // shut down the app at anytime.
 namespace app.runtime {
 
   [inline_doc] dictionary LaunchItem {
@@ skipping 31 matching lines @@
     boolean? isKioskSession;
   };
 
   // This object specifies details and operations to perform on the embedding
   // request. The app to be embedded can make a decision on whether or not to
   // allow the embedding and what to embed based on the embedder making the
   // request.
   dictionary EmbedRequest {
     DOMString embedderId;
 
+    // Optional developer specified data that the app to be embedded can use
+    // when making an embedding decision.
+    any? data;
+
     // Allows <code>embedderId</code> to embed this app in an &lt;appview&gt;
     // element. The <code>url</code> specifies the content to embed.
     [nocompile] static void allow(DOMString url);
 
     // Prevents <code> embedderId</code> from embedding this app in an
     // &lt;appview&gt; element.
     [nocompile] static void deny();
   };
 
   interface Events {
     // Fired when an embedding app requests to embed this app. This event is
     // only available on dev channel with the flag --enable-app-view.
     static void onEmbedRequested(EmbedRequest request);
 
     // 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();
   };
 };