Fixing std::swap(x, x) in base.

Discussion:
https://groups.google.com/a/chromium.org/d/topic/chromium-dev/ZzfGfgruHxc/discussion

Review-Url: https://codereview.chromium.org/2797283002
Cr-Commit-Position: refs/heads/master@{#462436}


CrOS-Libchrome-Original-Commit: ed2ec7d0c475caf59f63d1b7620b8939e1eef02a
6 files changed
tree: 68d34c9050ad56d18c0f3903dc5982f758f85069
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/