sandbox/linux: Enable -Wshift-negative-value after LSS roll.

BUG=507717

Review-Url: https://codereview.chromium.org/2794483002
Cr-Original-Commit-Position: refs/heads/master@{#461127}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: 3ee77710665d0ad9d9a9d05afa5ee21062939378
1 file changed
tree: 19ecff27f9dd93bb909c0bea82f09c37d5b285fb
  1. linux/
  2. mac/
  3. win/
  4. BUILD.gn
  5. features.gni
  6. OWNERS
  7. sandbox_export.h