media: Add DecoderBufferSideData

This adds a formalized side data struct to media::DecoderBuffer and
removes existing usages of the raw array for side data.

There are two existing cases of side data and this CL also adds a
third new one. The two existing ones are for VP9 spatial layers and
alpha data. The new one is for a secure handle which is used for
secure world content decryption on ARM in ChromeOS.

This also removes some TextRenderer support since that is deprecated
and will be removed. Changes made here break some of the functionality
so the unit test for it is removed as well.

In order to deal with Lacros compatibility, this does translate
between the existing raw data format and the new formalized format and
vice-versa. At M120, the corresponding code for that should be removed.

BUG=b:248610722,b:269383891,1471504
TEST=CQ

Change-Id: I0f90c3417fcd72bb25738ca045e527fbc1371ab7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/4757645
Reviewed-by: Chris Bookholt <bookholt@chromium.org>
Reviewed-by: Dale Curtis <dalecurtis@chromium.org>
Commit-Queue: Jeffrey Kardatzke <jkardatzke@google.com>
Cr-Commit-Position: refs/heads/main@{#1183777}

• chromeos/components/cdm_factory_daemon/content_decryption_module_adapter.cc[diff]
• chromeos/components/cdm_factory_daemon/content_decryption_module_adapter_unittest.cc[diff]
• media/base/BUILD.gn[diff]
• media/base/decoder_buffer.cc[diff]
• media/base/decoder_buffer.h[diff]
• media/base/decoder_buffer_side_data.cc[Added - diff]
• media/base/decoder_buffer_side_data.h[Added - diff]
• media/base/decoder_buffer_unittest.cc[diff]
• media/base/fake_text_track_stream.cc[diff]
• media/base/stream_parser_buffer.cc[diff]
• media/base/stream_parser_buffer.h[diff]
• media/base/text_renderer.cc[diff]
• media/base/text_renderer_unittest.cc[Deleted - diff]
• media/cast/openscreen/remoting_proto_utils.cc[diff]
• media/cast/openscreen/remoting_proto_utils_unittest.cc[diff]
• media/cdm/cbcs_decryptor.cc[diff]
• media/cdm/cbcs_decryptor_unittest.cc[diff]
• media/cdm/cenc_decryptor.cc[diff]
• media/cdm/cenc_decryptor_unittest.cc[diff]
• media/filters/ffmpeg_demuxer.cc[diff]
• media/filters/vpx_video_decoder.cc[diff]
• media/formats/webm/webm_cluster_parser.cc[diff]
• media/gpu/test/video_test_helpers.cc[diff]
• media/gpu/v4l2/legacy/v4l2_stateful_workaround.cc[diff]
• media/gpu/v4l2/legacy/v4l2_stateful_workaround_unittest.cc[diff]
• media/gpu/v4l2/legacy/v4l2_video_decode_accelerator.cc[diff]
• media/gpu/v4l2/v4l2_video_decoder_backend_stateful.cc[diff]
• media/gpu/vp9_decoder.cc[diff]
• media/mojo/common/media_type_converters.cc[diff]
• media/mojo/common/media_type_converters.h[diff]
• media/mojo/common/media_type_converters_unittest.cc[diff]
• media/mojo/common/mojo_decoder_buffer_converter_unittest.cc[diff]
• media/mojo/mojom/media_types.mojom[diff]
• media/mojo/mojom/stable/stable_video_decoder_types.mojom[diff]
• media/mojo/mojom/stable/stable_video_decoder_types_mojom_traits.cc[diff]
• media/mojo/mojom/stable/stable_video_decoder_types_mojom_traits.h[diff]
• media/mojo/mojom/stable/stable_video_decoder_types_mojom_traits_unittest.cc[diff]
• media/mojo/services/stable_video_decoder_service_unittest.cc[diff]
• third_party/blink/renderer/modules/mediasource/source_buffer.cc[diff]
• third_party/blink/renderer/platform/peerconnection/rtc_video_decoder_adapter.cc[diff]
• third_party/blink/renderer/platform/peerconnection/rtc_video_decoder_adapter_test.cc[diff]
• third_party/blink/renderer/platform/peerconnection/rtc_video_decoder_stream_adapter.cc[diff]