Merge M50: "Remove Exynos from MediaCodec blacklist. Limit MediaTek blacklist."

Merge M50: "Remove Exynos from MediaCodec blacklist. Limit MediaTek blacklist."

MediaCodec has a newer path for limiting the VP8 blacklist more
precisely that should be used instead of a blanket Exynos blacklist.

MediaTek nowadays also has a vp9 decoder, so restrict blacklist to
only vp8 MediaTek devices. Per glaznev@ the MediaTek vp8 decoder is
slower than software, so it kind of makes sense to include it on
the "known unaccelerated" list.

BUG=446974, 594814
TEST=hardware vp9 on galaxy s6 works with <video>.

Review URL: https://codereview.chromium.org/1796393002

Cr-Commit-Position: refs/heads/master@{#381322}
(cherry picked from commit fb7409de2920256bca4a678a030198d6a99f2709)

Committed: https://chromium.googlesource.com/chromium/src/+/e6bfabee5b582487a1e5835c5272ead6878a6c53

[DaleCurtis, 2016-03-21 18:03:46]

Description was changed from

==========
Merge M50: "Remove Exynos from MediaCodec blacklist. Limit MediaTek blacklist."

MediaCodec has a newer path for limiting the VP8 blacklist more
precisely that should be used instead of a blanket Exynos blacklist.

MediaTek nowadays also has a vp9 decoder, so restrict blacklist to
only vp8 MediaTek devices. Per glaznev@ the MediaTek vp8 decoder is
slower than software, so it kind of makes sense to include it on
the "known unaccelerated" list.

BUG=446974, 594814
TEST=hardware vp9 on galaxy s6 works with <video>.

Review URL: https://codereview.chromium.org/1796393002

Cr-Commit-Position: refs/heads/master@{#381322}
(cherry picked from commit fb7409de2920256bca4a678a030198d6a99f2709)
==========

to

==========
Merge M50: "Remove Exynos from MediaCodec blacklist. Limit MediaTek blacklist."

MediaCodec has a newer path for limiting the VP8 blacklist more
precisely that should be used instead of a blanket Exynos blacklist.

MediaTek nowadays also has a vp9 decoder, so restrict blacklist to
only vp8 MediaTek devices. Per glaznev@ the MediaTek vp8 decoder is
slower than software, so it kind of makes sense to include it on
the "known unaccelerated" list.

BUG=446974, 594814
TEST=hardware vp9 on galaxy s6 works with <video>.

Review URL: https://codereview.chromium.org/1796393002

Cr-Commit-Position: refs/heads/master@{#381322}
(cherry picked from commit fb7409de2920256bca4a678a030198d6a99f2709)

Committed:
https://chromium.googlesource.com/chromium/src/+/e6bfabee5b582487a1e5835c5272...
==========

[DaleCurtis, 2016-03-21 18:03:47]

Committed patchset #1 (id:1) manually as
e6bfabee5b582487a1e5835c5272ead6878a6c53.