[Presentation API] Added the DefaultPresentationStart event and parsing of the default presentation…

Source/modules/presentation/DefaultPresentationStartEvent.idl

Index: Source/modules/presentation/DefaultPresentationStartEvent.idl
diff --git a/Source/modules/presentation/DefaultPresentationStartEvent.idl b/Source/modules/presentation/DefaultPresentationStartEvent.idl
new file mode 100644
index 0000000000000000000000000000000000000000..f4917c69327ec9efc36b76ac6ff2897edff054d3
--- /dev/null
+++ b/Source/modules/presentation/DefaultPresentationStartEvent.idl
@@ -0,0 +1,12 @@
+// 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://code.google.com/p/chromium/issues/detail?id=459001

[Peter Beverloo, 2015/03/03 21:19:24]

I don't like a link to a bug rather than a spec link :-(.

Do you have an ETA for getting this added to the spec? Linking to the GitHub
issue would already be much better than this. And please be upfront about the
fact that this is a non-standard addition - this might become a concern in your
Intent to Ship.

[whywhat, 2015/03/05 18:41:47]

Done.

+
+[
+    Constructor(DOMString type, optional DefaultPresentationStartEventInit eventInitDict),
+    RuntimeEnabled=Presentation
+] interface DefaultPresentationStartEvent : Event {
+    readonly attribute PresentationSession session;
+};