Split disable_accelerated_vpx_decode workaround into vp8/vp9 versions.

Per discussion when we tried to enable these for VAAPI:
https://chromium-review.googlesource.com/c/chromium/src/+/2303676

Many of these workarounds are specific to early VP9 decoder hardware,
not VP8. Since we are enabling VP8 decode now, we should be precise
about what needs to be disabled.

R=tmathmeyer, zmo

Bug: 1066176, 654111, 616318, 1062849
Test: None.
Change-Id: I7615a279e451cb7acef62c74cb0fc2e21ba898d2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2325091
Auto-Submit: Dale Curtis <dalecurtis@chromium.org>
Reviewed-by: Zhenyao Mo <zmo@chromium.org>
Reviewed-by: Ted Meyer <tmathmeyer@chromium.org>
Commit-Queue: Dale Curtis <dalecurtis@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#792520}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 09143c2d7c15b69ff68af03b422ab37750136b47
2 files changed