Roll 50: Copied IDLs, PYTHON scripts from WebKit removed deleted files in WebCore

modules/presentation/DefaultSessionStartEventInit.idl

Index: modules/presentation/DefaultSessionStartEventInit.idl
diff --git a/modules/presentation/DefaultSessionStartEventInit.idl b/modules/presentation/DefaultSessionStartEventInit.idl
deleted file mode 100644
index 90f9db3c2d65baab601c5960c686cf4201208089..0000000000000000000000000000000000000000
--- a/modules/presentation/DefaultSessionStartEventInit.idl
+++ /dev/null
@@ -1,9 +0,0 @@
-// Copyright 2015 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.
-
-// https://w3c.github.io/presentation-api/#interface-defaultsessionstartevent
-
-dictionary DefaultSessionStartEventInit : EventInit {
-    PresentationSession session;
-};