Insufficient ProcessRecord cleanup when persistent process is killed

When persistent process with Service restarts, ActivityManagerService
does not reset ProcessRecord#hasClientActivites to false
(because ProcessRecord of persistent process is continued using
after killing).

It disturbs updating LRU list in ActivityManagerService, and then,
when new process calls ActivityManagerProxy#publishContentProviders,
SecurityException happens because of no entry in the list.

Bug: 13517358

Change-Id: I46b064f71a4f7025ade1bf117801352a7ab22e6a

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

@@ -12435,6 +12435,7 @@ public final class ActivityManagerService extends ActivityManagerNative
         app.foregroundActivities = false;
         app.hasShownUi = false;
         app.hasAboveClient = false;
+        app.hasClientActivities = false;
 
         mServices.killServicesLocked(app, allowRestart);