media: Use IPC_STRUCT_TRAITS to convert SubsampleEntry for mojo

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.
@@ skipping 222 matching lines @@
   VideoCodecProfile profile;
   VideoFormat format;
   ColorSpace color_space;
   gfx.mojom.Size coded_size;
   gfx.mojom.Rect visible_rect;
   gfx.mojom.Size natural_size;
   array<uint8>? extra_data;
   EncryptionScheme encryption_scheme;
 };
 
-// This defines a mojo transport format for media::SubsampleEntry.
-// See media/base/decrypt_config.h for descriptions.
-struct SubsampleEntry {
-  uint32 clear_bytes;
-  uint32 cypher_bytes;
-};
+// Native struct media::SubsampleEntry;
+[Native]
+struct SubsampleEntry;
 
 // This defines a mojo transport format for media::DecryptConfig.
 // See media/base/decrypt_config.h for descriptions.
 struct DecryptConfig {
   string key_id;
   string iv;
   array<SubsampleEntry> subsamples;
 };
 
 // This defines a mojo transport format for media::DecoderBuffer.
@@ skipping 85 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;
 };