New Sequence/Thread checking API.

Macro-based to be zero size cost in non-dcheck builds.

Based on discussion  @ https://groups.google.com/a/chromium.org/d/topic/chromium-dev/99pKNd2kCcg/discussion

BUG=714835

Review-Url: https://codereview.chromium.org/2869893003
Cr-Commit-Position: refs/heads/master@{#470804}


CrOS-Libchrome-Original-Commit: d52c912abb8accf430d7ba7e7d368b2638a4c8fa
5 files changed
tree: 7e957db5aec358a06aa463e18c95f821616e9c3b
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/