media: add basic MediaRenderer mojom and TypeConverters

mojo/services/public/interfaces/media/media_types.mojom

Index: mojo/services/public/interfaces/media/media_types.mojom
diff --git a/mojo/services/public/interfaces/media/media_types.mojom b/mojo/services/public/interfaces/media/media_types.mojom
new file mode 100644
index 0000000000000000000000000000000000000000..cf279bdba87e96411b612c00b4db9c1fed40cece
--- /dev/null
+++ b/mojo/services/public/interfaces/media/media_types.mojom
@@ -0,0 +1,42 @@
+// Copyright 2014 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.
+
+module mojo {
+
+enum PipelineStatus {
+  OK,
+  ERROR_URL_NOT_FOUND,
+  ERROR_NETWORK,
+  ERROR_DECODE,
+  ERROR_DECRYPT,
+  ERROR_ABORT,
+  ERROR_INITIALIZATION_FAILED,
+  ERROR_COULD_NOT_RENDER,
+  ERROR_READ,
+  ERROR_OPERATION_PENDING,
+  ERROR_INVALID_STATE,
+  ERROR_COULD_NOT_OPEN,
+  ERROR_COULD_NOT_PARSE,
+  ERROR_NO_SUPPORTED_STREAMS,
+  ERROR_NOT_SUPPORTED
+};

[xhwang, 2014/08/22 23:30:02]

As discussed offline, you can just drop this. We only care about:
1, Whether initialization succeeded or failed
2, Whether any error happened.

+
+enum BufferingState {
+  // Indicates that there is no data buffered.
+  //
+  // Typical reason is data underflow and hence playback should be paused.
+  HAVE_NOTHING,
+
+  // Indicates that enough data has been buffered.
+  //
+  // Typical reason is enough data has been prerolled to start playback.
+  HAVE_ENOUGH,
+};
+
+struct PipelineStatistics {
+  // TODO(tim): Add video.
+  uint64 audio_bytes_decoded;
+};
+
+}