Add color metadata info to VideoDecoderConfig.

media/base/hdr_metadata.h

+// Copyright 2016 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.
+
+#ifndef MEDIA_BASE_HDR_METADATA_H_
+#define MEDIA_BASE_HDR_METADATA_H_
+
+#include "media/base/media_export.h"
+#include "ui/gfx/color_space.h"
+
+namespace media {
+
+// SMPTE ST 2086 mastering metadata.
+struct MEDIA_EXPORT MasteringMetadata {
+  float primary_r_chromaticity_x = 0;
+  float primary_r_chromaticity_y = 0;
+  float primary_g_chromaticity_x = 0;
+  float primary_g_chromaticity_y = 0;
+  float primary_b_chromaticity_x = 0;
+  float primary_b_chromaticity_y = 0;
+  float white_point_chromaticity_x = 0;
+  float white_point_chromaticity_y = 0;
+  float luminance_max = 0;
+  float luminance_min = 0;
+
+  MasteringMetadata();
+  MasteringMetadata(const MasteringMetadata& rhs);
+};
+
+// HDR metadata common for HDR10 and WebM/VP9-based HDR formats.
+struct MEDIA_EXPORT HDRMetadata {
+  MasteringMetadata mastering_metadata;
+  unsigned max_cll = 0;
+  unsigned max_fall = 0;
+
+  HDRMetadata();
+  HDRMetadata(const HDRMetadata& rhs);
+};
+
+}  // namespace media
+
+#endif  // MEDIA_BASE_HDR_METADATA_H_