Adds support for media permission request handling on <appview> tag.

extensions/test/data/app_view/apitest/media_request/test.js

Index: extensions/test/data/app_view/apitest/media_request/test.js
diff --git a/chrome/test/data/extensions/api_test/management/packaged_app/test.js b/extensions/test/data/app_view/apitest/media_request/test.js
similarity index 63%
copy from chrome/test/data/extensions/api_test/management/packaged_app/test.js
copy to extensions/test/data/app_view/apitest/media_request/test.js
index 829a7e013184fd818fbbbe9593ae23a0807252cf..78a514040ac3e3bbae3b4d14e7b844331e2c8295 100644
--- a/chrome/test/data/extensions/api_test/management/packaged_app/test.js
+++ b/extensions/test/data/app_view/apitest/media_request/test.js
@@ -2,6 +2,6 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-chrome.app.runtime.onLaunched.addListener(function() {
-  // Do nothing.
+chrome.app.runtime.onEmbedRequested.addListener(function(request) {
+  request.allow('main.html');
 });