Bug 1798975 - Add new values to VideoColorSpace r=webidl,jgilbert,padenot,smaug

Add more color spaces introduced by https://github.com/w3c/webcodecs/pull/566

Differential Revision: https://phabricator.services.mozilla.com/D161224

dom/webidl/VideoColorSpace.webidl

@@ -32,12 +32,17 @@ enum VideoColorPrimaries {
   "bt709",      // BT.709, sRGB
   "bt470bg",    // BT.601 PAL
   "smpte170m",  // BT.601 NTSC
+  "bt2020",     // BT.2020, BT.2100
+  "smpte432",   // P3 D65
 };
 
 enum VideoTransferCharacteristics {
   "bt709",         // BT.709
   "smpte170m",     // BT.601 (functionally the same as bt709)
   "iec61966-2-1",  // sRGB
+  "linear",        // linear RGB
+  "pq",            // BT.2100 PQ
+  "hlg",           // BT.2100 HLG
 };
 
 enum VideoMatrixCoefficients {
@@ -45,4 +50,5 @@ enum VideoMatrixCoefficients {
   "bt709",      // BT.709
   "bt470bg",    // BT.601 PAL
   "smpte170m",  // BT.601 NTSC (functionally the same as bt470bg)
+  "bt2020-ncl", // BT.2020 NCL
 };