tsan_suppressions: remove vp9 suppression

The fix was picked up in the r282874 libvpx roll.
BUG=350982

Review URL: https://codereview.chromium.org/423643002

git-svn-id: https://src.chromium.org/svn/trunk/src/base@285807 4ff67af0-8c30-449e-8e8b-ad334ec8d88c
clang/win: Fix a few warnings.

__THROW is not some magical thing, don't pretend it is. Don't add it to
extern "C" functions. Replace it with "throw ()" on the functions where it's
correct since it was defined to nothing on windows (the only place where this
file is used).

Fix an inconsequential enum constant mix-up in media (both enum constants
evaluated to the same value, and the enums had the same size, so it shouldn't
make a difference in practice, but the old code was comparing enum variables
with enum constants from a different enum).

BUG=82385
TBR=dalecurtis

Review URL: https://codereview.chromium.org/419323002

git-svn-id: https://src.chromium.org/svn/trunk/src/base@285838 4ff67af0-8c30-449e-8e8b-ad334ec8d88c