commit de4ee0f572c08a2c585d5bb6b7a53b1d063cc0b1
author Bill Lin <lbill@google.com> Wed May 08 23:29:30 2019 +0800
committer Bill Lin <lbill@google.com> Thu May 09 15:00:18 2019 +0800
tree bb362499203424ba1af264912ccea53e2f122551
parent e66ca09dfed3130f4d0e09ed9f88f39d0788fec4

Title of RootInfo on ToolBar do not update after locale changed

RootInfo title of "Images" or "Videos" or "Audio" or "Downloads" do not
update after locale changed

Root Cause : BaseActivity.java
 1) onSaveInstanceState(Bundle state) : save the old state before locale changed
 2) onCreate.getState(icicle) : assign old state to mState => mState.stack.getRoot() is old locale

Solution :
 Update current root title from latest root

Bug: 37358441
Test: atest DocumentsUITests
      manual test swtich locale and observe toolbar update locale

Change-Id: Ib79d1885766ce76ae194196f9286ef5265734efa