tree 0e3e14371171e9a6eab7f192821880adba6288fe
parent 977120aee94a1e04e5aba7cb624be8260fd7da4a
author Keun young Park <keunyoung@google.com> 1574371247 -0800
committer Keun young Park <keunyoung@google.com> 1574445776 -0800

Add null check for Context and ContextWrapper base

- Besides null Context, non-null ContextWrapper can be problematic when its base
  is not set.
- Add assertion so that such mistake from client side can be detected quickly.

Bug: 144931251
Test: boot up and check crash
Change-Id: Ib8d92f67e644929c77554cbb7679b2fc0f7509ab