Apps can call addChild through AccessibilityNodeProvider, so it's
possible that an app adds a node itself as a child node. This will break
down the integrity of UI tree and cause failure to operation in
UIAutomator. Thus I suggest do this integrity check when adding child.
Test: as follows
- built
- flashed
- booted
- run my test script based on uiautomator
Change-Id: I8cba22a1d9d1a49365c6bce4241ef5067502fb79
Signed-off-by: qinyige <qinyige@xiaomi.com>
0b5ca24a41