media: Use native BufferingState in media mojo interfaces

media/base/ipc/media_param_traits_macros.h

Index: media/base/ipc/media_param_traits_macros.h
diff --git a/media/base/ipc/media_param_traits_macros.h b/media/base/ipc/media_param_traits_macros.h
index 6461ccf112c9cf28bfbd491d0e58938fed64a266..38a4c0007eceb71a7e47fb75150c274fec5db23f 100644
--- a/media/base/ipc/media_param_traits_macros.h
+++ b/media/base/ipc/media_param_traits_macros.h
@@ -7,16 +7,24 @@
 
 #include "ipc/ipc_message_macros.h"
 #include "media/base/audio_parameters.h"
+#include "media/base/buffering_state.h"
 #include "media/base/subsample_entry.h"
 #include "media/base/video_capture_types.h"
 #include "media/base/video_types.h"
 
+IPC_ENUM_TRAITS_MAX_VALUE(media::AudioLatency::LatencyType,
+                          media::AudioLatency::LATENCY_COUNT)
+
 IPC_ENUM_TRAITS_MAX_VALUE(media::AudioParameters::Format,
                           media::AudioParameters::AUDIO_FORMAT_LAST)
+
+IPC_ENUM_TRAITS_MAX_VALUE(media::BufferingState,
+                          media::BufferingState::BUFFERING_STATE_MAX)
+
 IPC_ENUM_TRAITS_MAX_VALUE(media::ChannelLayout, media::CHANNEL_LAYOUT_MAX)
-IPC_ENUM_TRAITS_MAX_VALUE(media::AudioLatency::LatencyType,
-                          media::AudioLatency::LATENCY_COUNT)
+
 IPC_ENUM_TRAITS_MAX_VALUE(media::VideoPixelFormat, media::PIXEL_FORMAT_MAX)
+
 IPC_ENUM_TRAITS_MAX_VALUE(media::VideoPixelStorage, media::PIXEL_STORAGE_MAX)
 
 IPC_STRUCT_TRAITS_BEGIN(media::SubsampleEntry)