Add Resources Perf Tests

This changes adds benchamrks for Resources, ResourcesManager,
OverlayManager, and Resources.Theme.

Bug: 136085555
Test: atest OverlayManagerPerfTest
Test: atest ResourcesManagerPerfTest
Test: atest ResourcesPerfTest
Test: atest ResourcesThemePerfTest

Change-Id: I6a3b3275399c161e55ff6ce34e7bc2ae5556edf1
diff --git a/services/core/java/com/android/server/om/OverlayManagerService.java b/services/core/java/com/android/server/om/OverlayManagerService.java
index f8b3fb2..17192b2 100644
--- a/services/core/java/com/android/server/om/OverlayManagerService.java
+++ b/services/core/java/com/android/server/om/OverlayManagerService.java
@@ -740,6 +740,25 @@
         }
 
         @Override
+        public void invalidateCachesForOverlay(@Nullable String packageName, int userId)
+                throws RemoteException {
+            if (packageName == null) {
+                return;
+            }
+
+            enforceChangeOverlayPackagesPermission("invalidateCachesForOverlay");
+            userId = handleIncomingUser(userId, "invalidateCachesForOverlay");
+            final long ident = Binder.clearCallingIdentity();
+            try {
+                synchronized (mLock) {
+                    mImpl.removeIdmapForOverlay(packageName, userId);
+                }
+            } finally {
+                Binder.restoreCallingIdentity(ident);
+            }
+        }
+
+        @Override
         public void onShellCommand(@NonNull final FileDescriptor in,
                 @NonNull final FileDescriptor out, @NonNull final FileDescriptor err,
                 @NonNull final String[] args, @NonNull final ShellCallback callback,