Rename some Mojo internals bits

Gets rid of references to "parent" and "child" misnomers throughout EDK
code so that the actual relationship between endpoints (i.e. inviter and
invitee) is clear.

Also because they are relevant to this naming cleanup, some useless
histograms are removed here as well.

Bug: 813112
Change-Id: Id5ab66a0648b5556b397dfa076c0bcde8bc61378
Reviewed-on: https://chromium-review.googlesource.com/924575
Reviewed-by: Jay Civelli <jcivelli@chromium.org>
Reviewed-by: Ilya Sherman <isherman@chromium.org>
Commit-Queue: Ken Rockot <rockot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#538106}

CrOS-Libchrome-Original-Commit: 02989854444bc7713f896979d8fea957e1257f0a
8 files changed
tree: 9ec4ab5d0512a212dc7daedb85a855a7e833dc80
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/