color: Clarify default behaviors

chromecast/public/media/decoder_config.h

Index: chromecast/public/media/decoder_config.h
diff --git a/chromecast/public/media/decoder_config.h b/chromecast/public/media/decoder_config.h
index c9a9a0ce7b93c1bdcba64cbf3334be768122a5d3..036ac3d9fbb534410e6109352486eff024696cda 100644
--- a/chromecast/public/media/decoder_config.h
+++ b/chromecast/public/media/decoder_config.h
@@ -167,105 +167,6 @@ inline EncryptionScheme AesCtrEncryptionScheme() {
                           EncryptionScheme::Pattern());
 }
 
-// ---- Begin copy/paste from ui/gfx/color_space.h ----
-enum class PrimaryID : uint16_t {
-  // The first 0-255 values should match the H264 specification.
-  RESERVED0 = 0,
-  BT709 = 1,
-  UNSPECIFIED = 2,
-  RESERVED = 3,
-  BT470M = 4,
-  BT470BG = 5,
-  SMPTE170M = 6,
-  SMPTE240M = 7,
-  FILM = 8,
-  BT2020 = 9,
-  SMPTEST428_1 = 10,
-  SMPTEST431_2 = 11,
-  SMPTEST432_1 = 12,
-
-  // Chrome-specific values start at 1000.
-  XYZ_D50 = 1000,
-  // TODO(hubbe): We need to store the primaries.
-  CUSTOM = 1001,
-  LAST = CUSTOM
-};
-
-enum class TransferID : uint16_t {
-  // The first 0-255 values should match the H264 specification.
-  RESERVED0 = 0,
-  BT709 = 1,
-  UNSPECIFIED = 2,
-  RESERVED = 3,
-  GAMMA22 = 4,
-  GAMMA28 = 5,
-  SMPTE170M = 6,
-  SMPTE240M = 7,
-  LINEAR = 8,
-  LOG = 9,
-  LOG_SQRT = 10,
-  IEC61966_2_4 = 11,
-  BT1361_ECG = 12,
-  IEC61966_2_1 = 13,
-  BT2020_10 = 14,
-  BT2020_12 = 15,
-  SMPTEST2084 = 16,
-  SMPTEST428_1 = 17,
-  ARIB_STD_B67 = 18,  // AKA hybrid-log gamma, HLG
-
-  // Chrome-specific values start at 1000.
-  GAMMA24 = 1000,
-
-  // This is an ad-hoc transfer function that decodes SMPTE 2084 content
-  // into a 0-1 range more or less suitable for viewing on a non-hdr
-  // display.
-  SMPTEST2084_NON_HDR,
-
-  // TODO(hubbe): Need to store an approximation of the gamma function(s).
-  CUSTOM,
-  LAST = CUSTOM,
-};
-
-enum class MatrixID : int16_t {
-  // The first 0-255 values should match the H264 specification.
-  RGB = 0,
-  BT709 = 1,
-  UNSPECIFIED = 2,
-  RESERVED = 3,
-  FCC = 4,
-  BT470BG = 5,
-  SMPTE170M = 6,
-  SMPTE240M = 7,
-  YCOCG = 8,
-  BT2020_NCL = 9,
-  BT2020_CL = 10,
-  YDZDX = 11,
-
-  // Chrome-specific values start at 1000
-  LAST = YDZDX,
-};
-
-// This corresponds to the WebM Range enum which is part of WebM color data
-// (see http://www.webmproject.org/docs/container/#Range).
-// H.264 only uses a bool, which corresponds to the LIMITED/FULL values.
-// Chrome-specific values start at 1000.
-enum class RangeID : int8_t {
-  // Range is not explicitly specified / unknown.
-  UNSPECIFIED = 0,
-
-  // Limited Rec. 709 color range with RGB values ranging from 16 to 235.
-  LIMITED = 1,
-
-  // Full RGB color range with RGB valees from 0 to 255.
-  FULL = 2,
-
-  // Range is defined by TransferID/MatrixID.
-  DERIVED = 3,
-
-  LAST = DERIVED
-};
-// ---- End copy/pasted from ui/gfx/color_space.h ----
-
 // ---- Begin copy/paste from media/base/hdr_metadata.h ----
 // SMPTE ST 2086 mastering metadata.
 struct MasteringMetadata {
@@ -367,11 +268,7 @@ struct VideoConfig {
   // Encryption scheme (if any) used for the content.
   EncryptionScheme encryption_scheme;
 
-  // ColorSpace info
-  PrimaryID primaries = PrimaryID::UNSPECIFIED;
-  TransferID transfer = TransferID::UNSPECIFIED;
-  MatrixID matrix = MatrixID::UNSPECIFIED;
-  RangeID range = RangeID::UNSPECIFIED;
+  // TODO(ccameron) add color space info
 
   bool have_hdr_metadata = false;
   HDRMetadata hdr_metadata;