Bring VideoColorSpace and VideoColorSpaceInit of 'w3c_webcodecs' to externs.
Bring VideoColorSpace and VideoColorSpaceInit of 'w3c_webcodecs' to externs.

PiperOrigin-RevId: 449476177

nawawi/closure-compiler,monetate/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler,google/closure-compiler,nawawi/closure-compiler,ChadKillingsworth/closure-compiler,ChadKillingsworth/closure-compiler,monetate/closure-compiler,ChadKillingsworth/closure-compiler,google/closure-compiler,monetate/closure-compiler,nawawi/closure-compiler,google/closure-compiler,google/closure-compiler