Update documentation for base::ResetAndReturn(Callback*)

Added the method to callback.md because it's helpful yet I hadn't discovered it (callback_helpers.h is a more obscure file than callback.h or bind_helpers.h)

BUG=none
R=tzik@chromium.org

Review-Url: https://codereview.chromium.org/2755073002
Cr-Commit-Position: refs/heads/master@{#457939}


CrOS-Libchrome-Original-Commit: 0f156e19b0a9f4de042283229d994eeca972e186
1 file changed
tree: ead37439ccbe596be9696482e66dae66181ebb9e
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/