Implement <appview>

extensions/renderer/resources/app_runtime_custom_bindings.js

 // 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.
 
 // Custom binding for the chrome.app.runtime API.
 
 var binding = require('binding').Binding.create('app.runtime');
 
+var AppViewInternal =
+    require('binding').Binding.create('appViewInternal').generate();
 var eventBindings = require('event_bindings');
 var fileSystemHelpers = requireNative('file_system_natives');
 var GetIsolatedFileSystem = fileSystemHelpers.GetIsolatedFileSystem;
 var appNatives = requireNative('app_runtime');
 var DeserializeString = appNatives.DeserializeString;
 var SerializeToString = appNatives.SerializeToString;
 var CreateBlob = appNatives.CreateBlob;
 var entryIdManager = require('entryIdManager');
 
+eventBindings.registerArgumentMassager('app.runtime.onEmbedRequested',
+    function(args, dispatch) {
+  var appEmbeddingRequest = args[0];
+  var id = appEmbeddingRequest.guestInstanceId;
+  delete appEmbeddingRequest.guestInstanceId;
+  appEmbeddingRequest.allow = function(url) {
+    AppViewInternal.attachFrame(url, id);
+  };
+
+  appEmbeddingRequest.deny = function() {
+    AppViewInternal.denyRequest(id);
+  };
+
+  dispatch([appEmbeddingRequest]);
+});
+
 eventBindings.registerArgumentMassager('app.runtime.onLaunched',
     function(args, dispatch) {
   var launchData = args[0];
   if (launchData.items) {
     // An onLaunched corresponding to file_handlers in the app's manifest.
     var items = [];
     var numItems = launchData.items.length;
     var itemLoaded = function(err, item) {
       if (err) {
         console.error('Error getting fileEntry, code: ' + err.code);
@@ skipping 19 matching lines @@
       });
     });
   } else {
     // Default case. This currently covers an onLaunched corresponding to
     // url_handlers in the app's manifest.
     dispatch([launchData]);
   }
 });
 
 exports.binding = binding.generate();