Add internal implementation for notifyPackageUse

We have checks that prevent applications from modifying the usage
times of instant apps [and vice versa]. However, it's critical for
internal components such as the ActivityManager to be able to upate
this for all packages. Add an internal implementation of this
method that skips the checks.

Change-Id: Ib890296065024104cdaf7c8d64a5a7583d9062c1
Fixes: 65228752
Test: Manual. Run an application installed as an "instant app" and notice the usage time goes up

core/java/android/content/pm/PackageManagerInternal.java

@@ -378,4 +378,9 @@ public abstract class PackageManagerInternal {
      * associated with an instant app. It may be kept after the instant app has been uninstalled.
      */
     public abstract boolean hasInstantApplicationMetadata(String packageName, int userId);
+
+    /**
+     * Updates a package last used time.
+     */
+    public abstract void notifyPackageUse(String packageName, int reason);
 }

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

@@ -3579,10 +3579,8 @@ public class ActivityManagerService extends IActivityManager.Stub
     }
 
     void notifyPackageUse(String packageName, int reason) {
-        IPackageManager pm = AppGlobals.getPackageManager();
-        try {
-            pm.notifyPackageUse(packageName, reason);
-        } catch (RemoteException e) {
+        synchronized(this) {
+            getPackageManagerInternalLocked().notifyPackageUse(packageName, reason);
         }
     }
 

services/core/java/com/android/server/pm/PackageManagerService.java

@@ -9844,14 +9844,18 @@ public class PackageManagerService extends IPackageManager.Stub
                     return;
                 }
             }
-            final PackageParser.Package p = mPackages.get(packageName);
-            if (p == null) {
-                return;
-            }
-            p.mLastPackageUsageTimeInMills[reason] = System.currentTimeMillis();
+            notifyPackageUseLocked(packageName, reason);
         }
     }
 
+    private void notifyPackageUseLocked(String packageName, int reason) {
+        final PackageParser.Package p = mPackages.get(packageName);
+        if (p == null) {
+            return;
+        }
+        p.mLastPackageUsageTimeInMills[reason] = System.currentTimeMillis();
+    }
+
     @Override
     public void notifyDexLoad(String loadingPackageName, List<String> classLoaderNames,
             List<String> classPaths, String loaderIsa) {
@@ -25502,6 +25506,13 @@ Slog.v(TAG, ":: stepped forward, applying functor at tag " + parser.getName());
                 return mInstantAppRegistry.hasInstantApplicationMetadataLPr(packageName, userId);
             }
         }
+
+        @Override
+        public void notifyPackageUse(String packageName, int reason) {
+            synchronized (mPackages) {
+                PackageManagerService.this.notifyPackageUseLocked(packageName, reason);
+            }
+        }
     }
 
     @Override