media: Use native BufferingState in media mojo interfaces

media/mojo/interfaces/media_types.mojom

 // 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 media.mojom;
 
 import "ui/gfx/geometry/mojo/geometry.mojom";
 import "mojo/common/common_custom_types.mojom";
 
 // See media/base/buffering_state.h for descriptions.
-// Kept in sync with media::BufferingState via static_asserts.
-enum BufferingState {
-  HAVE_NOTHING,
-  HAVE_ENOUGH,
-};
+[Native]
+enum BufferingState;
 
 // See media/base/decode_status.h for descriptions.
 // Kept in sync with media::DecodeStatus via static_asserts.
 enum DecodeStatus {
   OK,
   ABORTED,
   DECODE_ERROR,
 };
 
 // See media/base/audio_decoder_config.h for descriptions.
@@ skipping 315 matching lines @@
 };
 
 struct PipelineStatistics {
   uint64 audio_bytes_decoded;
   uint64 video_bytes_decoded;
   uint32 video_frames_decoded;
   uint32 video_frames_dropped;
   int64 audio_memory_usage;
   int64 video_memory_usage;
 };