Disable ASan instrumentation for sandbox::(anonymous namespace)::CloneAndLongjmpInChild

ASan instrumentation caused the stack buffer for the child process to be allocated
on fake stack. This led to confusing ASan warnings about potential false positives.

BUG=None
[email protected]

Review URL: https://codereview.chromium.org/829483002

Cr-Commit-Position: refs/heads/master@{#309688}
1 file changed