media: Use native BufferingState in media mojo interfaces

media/mojo/common/media_type_converters.cc

Index: media/mojo/common/media_type_converters.cc
diff --git a/media/mojo/common/media_type_converters.cc b/media/mojo/common/media_type_converters.cc
index ab794b14211b5984c5e319a353bfc1cc8c9d9dac..8e8051cf6632aba81da87c58ea1375d7dcb22728 100644
--- a/media/mojo/common/media_type_converters.cc
+++ b/media/mojo/common/media_type_converters.cc
@@ -11,7 +11,6 @@
 #include "base/numerics/safe_conversions.h"
 #include "media/base/audio_buffer.h"
 #include "media/base/audio_decoder_config.h"
-#include "media/base/buffering_state.h"
 #include "media/base/cdm_config.h"
 #include "media/base/cdm_key_information.h"
 #include "media/base/decode_status.h"
@@ -48,10 +47,6 @@ namespace mojo {
           static_cast<media::media_enum>(media::mojom::media_enum::value), \
       "Mismatched enum: " #media_enum #value)
 
-// BufferingState.
-ASSERT_ENUM_EQ(BufferingState, BUFFERING_, , HAVE_NOTHING);
-ASSERT_ENUM_EQ(BufferingState, BUFFERING_, , HAVE_ENOUGH);
-
 // DecodeStatus.
 ASSERT_ENUM_CLASS_EQ(DecodeStatus, OK);
 ASSERT_ENUM_CLASS_EQ(DecodeStatus, ABORTED);