Instrumented libraries: build libpixman-1-0 with MSan, TSan.

Not sure what was broken before, but it seems to work now. I also added the
configure flags from debian/rules.

BUG=424313
TBR=glider@chromium.org
NOTRY=true
TEST=MSan

Review URL: https://codereview.chromium.org/660863005

Cr-Original-Commit-Position: refs/heads/master@{#299963}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 4d3d50c2048eac0cd397c7b73880466b881a2411
1 file changed