Mojom updates for Motown.

mojo/services/media/common/interfaces/media_metadata.mojom

Index: mojo/services/media/common/interfaces/media_metadata.mojom
diff --git a/mojo/services/media/common/interfaces/media_metadata.mojom b/mojo/services/media/common/interfaces/media_metadata.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..1cbe88cd241e57e8e4c3c3f3cf24f1211f5fd43f
--- /dev/null
+++ b/mojo/services/media/common/interfaces/media_metadata.mojom
@@ -0,0 +1,24 @@
+// 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.
+
+[DartPackage="mojo_services"]
+module mojo.media;
+
+// Describes media.
+struct MediaMetadata {
+  // Duration in nanoseconds.
+  uint64 duration;

[johngro, 2015/12/10 21:46:02]

do we need some way to indicate an unknown duration (streaming content)?  Either
a special value or making this optional?

[dalesat, 2015/12/10 22:33:38]

We might. I'd like to address that when it comes up.

+
+  string? title;
+
+  string? artist;
+
+  string? album;
+
+  string? publisher;
+
+  string? genre;
+
+  string? composer;
+};