Android: Remove BaseChromiumApplication

Replaces it with the default android.app.Application.
BaseChromiumApplication was almost empty and current code has been
moved to "Application"s that used to extend it (if applicable).

Motivation: Prevent devs from making the incorrect assumption that
BaseChromiumApplication is always used (webview does not use it).

TBR=agrieve
Bug: 560466

Change-Id: Ia704dbd5b4e7016d142d3bd4d1be367e26682064
Reviewed-on: https://chromium-review.googlesource.com/909556
Commit-Queue: agrieve <agrieve@chromium.org>
Reviewed-by: Luke Halliwell <halliwell@chromium.org>
Reviewed-by: agrieve <agrieve@chromium.org>
Reviewed-by: Eric Stevenson <estevenson@chromium.org>
Reviewed-by: Ted Choc <tedchoc@chromium.org>
Reviewed-by: Bo <boliu@chromium.org>
Reviewed-by: Richard Coles <torne@chromium.org>
Reviewed-by: Yaron Friedman <yfriedman@chromium.org>
Cr-Commit-Position: refs/heads/master@{#538193}

CrOS-Libchrome-Original-Commit: e984b291762d6e7de386eab1c8072504b66315e5
2 files changed
tree: f3a56272ed564e1418380c73404ffc79dc4cd95d
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/