EDK: Add Core::GetRights().

mojo/edk/system/core_test_base.h

Index: mojo/edk/system/core_test_base.h
diff --git a/mojo/edk/system/core_test_base.h b/mojo/edk/system/core_test_base.h
index a3dd3fda972894708795064254dbaf1ac75bc1f1..4dde782cfd8eab20752ab8e0a7571d13364fff6c 100644
--- a/mojo/edk/system/core_test_base.h
+++ b/mojo/edk/system/core_test_base.h
@@ -32,6 +32,13 @@ class CoreTestBase : public testing::Test {
  public:
   using MockHandleInfo = CoreTestBase_MockHandleInfo;
 
+  static constexpr MojoHandleRights kDefaultMockHandleRights =
+      MOJO_HANDLE_RIGHT_DUPLICATE | MOJO_HANDLE_RIGHT_TRANSFER |
+      MOJO_HANDLE_RIGHT_READ | MOJO_HANDLE_RIGHT_WRITE |
+      MOJO_HANDLE_RIGHT_GET_OPTIONS | MOJO_HANDLE_RIGHT_SET_OPTIONS |
+      MOJO_HANDLE_RIGHT_MAP_READABLE | MOJO_HANDLE_RIGHT_MAP_WRITABLE |
+      MOJO_HANDLE_RIGHT_MAP_EXECUTABLE;
+
   CoreTestBase();
   ~CoreTestBase() override;