Verify `android.test.mock` under Ravenwood.

Even though developers are encouraged to use Mockito, existing tests
may still be using this old library for their mocking.

We'll circle back later to consider support for components such as
ContentProvider, Service, etc.

Clean up OWNERS.

Bug: 310268946
Test: atest android.test.mock.ravenwood.tests
Change-Id: Ie3f4ccea9cf6719d61cff277a627825868edc992
diff --git a/ravenwood/OWNERS b/ravenwood/OWNERS
index c06b3b9..41fd68e 100644
--- a/ravenwood/OWNERS
+++ b/ravenwood/OWNERS
@@ -1,3 +1,5 @@
+set noparent
+
 jsharkey@google.com
 omakoto@google.com
 jaggies@google.com
diff --git a/ravenwood/framework-minus-apex-ravenwood-policies.txt b/ravenwood/framework-minus-apex-ravenwood-policies.txt
index 79bfa44..96cfa48 100644
--- a/ravenwood/framework-minus-apex-ravenwood-policies.txt
+++ b/ravenwood/framework-minus-apex-ravenwood-policies.txt
@@ -134,6 +134,8 @@
 class android.net.Uri stubclass
 class android.net.UriCodec stubclass
 
-# Context: just enough to support wrapper, no further functionality
+# Just enough to support mocking, no further functionality
 class android.content.Context stub
     method <init> ()V stub
+class android.content.pm.PackageManager stub
+    method <init> ()V stub
diff --git a/ravenwood/ravenwood-annotation-allowed-classes.txt b/ravenwood/ravenwood-annotation-allowed-classes.txt
index 07c2cd7c..e294733 100644
--- a/ravenwood/ravenwood-annotation-allowed-classes.txt
+++ b/ravenwood/ravenwood-annotation-allowed-classes.txt
@@ -30,6 +30,7 @@
 android.content.ComponentName
 android.content.ContentUris
 android.content.ContentValues
+android.content.ContextWrapper
 android.content.Intent
 android.content.IntentFilter
 android.content.UriMatcher