Updated to Chrome 45 (2454) moved from SVN to git.

modules/mediasession/MediaSession.idl

Index: modules/mediasession/MediaSession.idl
diff --git a/modules/mediasession/MediaSession.idl b/modules/mediasession/MediaSession.idl
new file mode 100644
index 0000000000000000000000000000000000000000..235604b3f20f4b98c5470611e3d8e68f8152db2e
--- /dev/null
+++ b/modules/mediasession/MediaSession.idl
@@ -0,0 +1,14 @@
+// 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://mediasession.spec.whatwg.org/#the-mediasession-interface
+
+[
+    Constructor(),
+    GarbageCollected,
+    RuntimeEnabled=MediaSession,
+] interface MediaSession {
+    void activate();
+    void deactivate();
+};