Revert of Some more minor cleanup to ApplicationManager. (patchset #4 id:60001 of https://codereview.chromium.org/1351963002/ )

Reason for revert:
Broke Android GN.

Original issue's description:
> Some more minor cleanup to ApplicationManager.
>
> R=yzshen@chromium.org
> http://crbug.com/533085
>
> Committed: https://crrev.com/c6bde172a35b65b5a735675e840fab55921d28f8
> Cr-Commit-Position: refs/heads/master@{#349515}

TBR=yzshen@chromium.org,ben@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Review URL: https://codereview.chromium.org/1354043002

Cr-Commit-Position: refs/heads/master@{#349554}


CrOS-Libchrome-Original-Commit: 4dff1d58fa60695afac0aa3da11634378c0d7aad
13 files changed
tree: c791fad82618847217c0c5b3cd06a5e9a17e77df
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/