media: Respect color space regardless of pixel format.
media: Respect color space regardless of pixel format.

Previously it was only possible for YV12 frames to be in Rec.709. Fix one
case that was missed when removing the pixel format restriction.

BUG=489744

Review URL: https://codereview.chromium.org/1208693002

Cr-Commit-Position: 972c6d2dc6dd5efdad1377c0d224e03eb8f276f7@{#336055}

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