Merge "Move dumpStackTraces to a helper" into udc-dev

core/java/com/android/internal/os/anr/AnrLatencyTracker.java

...e/java/com/android/server/SystemServerInitThreadPool.java

services/core/java/com/android/server/Watchdog.java

...re/java/com/android/server/am/ActivityManagerService.java

...s/core/java/com/android/server/am/AppExitInfoTracker.java

...e/java/com/android/server/am/ProcessErrorStateRecord.java

...ore/java/com/android/server/am/StackTracesDumpHelper.java

...ava/com/android/server/wm/ActivityTaskManagerService.java

services/core/java/com/android/server/wm/AnrController.java