Android: Remove GetApplicationContext part 4

Java-side already has the ContextUtils#GetApplicationContext global and
no longer needs native to hold the pointer and pass it through jni with
every call that needs an application context.

Part 1: https://codereview.chromium.org/2772343003/
Part 2: https://codereview.chromium.org/2799263002/
Part 2.1 (cast): http://crrev.com/2807263002
Part 2.2 (components): http://crrev.com/2810863003
Part 3: http://crrev.com/2828353002

BUG=646094
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.android:android_cronet_tester;master.tryserver.chromium.android:android_optional_gpu_tests_rel;master.tryserver.chromium.linux:linux_optional_gpu_tests_rel;master.tryserver.chromium.mac:mac_optional_gpu_tests_rel;master.tryserver.chromium.win:win_optional_gpu_tests_rel

Review-Url: https://codereview.chromium.org/2847523002
Cr-Commit-Position: refs/heads/master@{#471861}


CrOS-Libchrome-Original-Commit: da737c56165f6fae6e81c488cf5821b7a77c7d1d
8 files changed
tree: ac14e4e57779fe87746858196b8d3717b25b8308
  1. base/
  2. build/
  3. components/
  4. dbus/
  5. device/
  6. ipc/
  7. mojo/
  8. testing/
  9. third_party/
  10. ui/