commit 79b96064baf9afb2ae897ce412e7f515c0816947
author Yunfan Chen <yunfanc@google.com> Wed Oct 17 12:45:23 2018 -0700
committer Yunfan Chen <yunfanc@google.com> Mon Oct 22 15:59:41 2018 -0700
tree 731b708557968d24069171cc601d8c2a441c2919
parent e08bef258c6da238a274959aad66154d4a20b0c7

Let IME be aware of display override configuration updates

This patch contains three parts:
- Register a listener to corresponding ActivityDisplay to let IME get
  updated display override configuration.
- Isolate IME display override configuration update from general global
  default display configuration update.
- Fix a possible NPE in getProcessGlobalConfiguratoin().

With the patch, IME will keep to get correct process global
configuration of the display it's registered to.

Bug: 113253755
Bug: 116870598
Test: See repro steps in b/111364446#comment10.
Test: go/wm-smoke
Change-Id: I7fb58ed23e58e4696a2fe336806c4bf323891074