commit 0c53e5e5680c2d5254a33d9ae4cd92f7062f96a8
author Jeff Chang <chengjeff@google.com> Wed Jul 10 11:38:05 2019 +0800
committer Jeff Chang <chengjeff@google.com> Mon Sep 02 14:27:16 2019 +0800
tree d22061e3ce89cddee318872b4df303153e6046a6
parent e303b217321aeaf519829b48f8754969b0e29e0d

Add observer for WindowManager developer options

Some WM-related developer options write a setting entry, which is
initialized only at system boot. We need to reboot after the setting
chanaged. The CL register an observer to "Enable freeform windows",
"Force desktop mode" and "Force resizable activities". It will take
effect after setting changed without reboot.

Bug: 129279411
Test: A. atest WmTests:WindowManagerSettingsTests
      B. Manual test.
         1. Enable "Force desktop mode",Freefome window","Force resizable activities" from
	    developer option.
         2. connect mouse (USB or Bluetooth).
         3. Create simulated display from developer options.
         4. Launch activities from launcher on simulated display and interact with mouse.

Change-Id: I7b5e15f548de5c2f163a1816020fe46756968f5e