Merge changes I17d87bae,Ie975e591,I6880b9b9,Ic752c7f3 into sc-dev

* changes:
  Add a TEST_MAPPING (9/n)
  Fix insufficient synchronization (8/n)
  Fix a race in the callback (7/n)
  setExplicitHealthCheckEnabled() needs to set mSyncRequired (6/n)

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

@@ -259,10 +259,7 @@ public class PackageWatchdog {
             mIsPackagesReady = true;
             mHealthCheckController.setCallbacks(packageName -> onHealthCheckPassed(packageName),
                     packages -> onSupportedPackages(packages),
-                    () -> {
-                            syncRequestsAsync();
-                            mSyncRequired = true;
-                    });
+                    this::onSyncRequestNotified);
             setPropertyChangedListenerLocked();
             updateConfigs();
             registerConnectivityModuleHealthListener();
@@ -537,6 +534,7 @@ public class PackageWatchdog {
         synchronized (mLock) {
             mIsHealthCheckEnabled = enabled;
             mHealthCheckController.setEnabled(enabled);
+            mSyncRequired = true;
             // Prune to update internal state whenever health check is enabled/disabled
             syncState("health check state " + (enabled ? "enabled" : "disabled"));
         }
@@ -788,6 +786,13 @@ public class PackageWatchdog {
         }
     }
 
+    private void onSyncRequestNotified() {
+        synchronized (mLock) {
+            mSyncRequired = true;
+            syncRequestsAsync();
+        }
+    }
+
     @GuardedBy("mLock")
     private Set<String> getPackagesPendingHealthChecksLocked() {
         Set<String> packages = new ArraySet<>();

tests/PackageWatchdog/TEST_MAPPING

@@ -0,0 +1,7 @@
+{
+  "presubmit": [
+    {
+      "name": "PackageWatchdogTest"
+    }
+  ]
+}