Add VTS tests for drm+crypto HALs

Tests: drm vts tests are passing

related-to-bug: 32815560

Change-Id: I2b36f27fbb42eba37f3e5a26acea0e359e60b3af
diff --git a/drm/1.0/vts/functional/shared_library.h b/drm/1.0/vts/functional/shared_library.h
new file mode 100644
index 0000000..1f32243
--- /dev/null
+++ b/drm/1.0/vts/functional/shared_library.h
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2017 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef SHARED_LIBRARY_H_
+#define SHARED_LIBRARY_H_
+
+#include <string>
+#include <vector>
+
+namespace drm_vts {
+class SharedLibrary {
+   public:
+    explicit SharedLibrary(const std::string& path);
+    ~SharedLibrary();
+
+    bool operator!() const;
+    void* lookup(const char* symbol) const;
+    const char* lastError() const;
+
+   private:
+    void* mLibHandle;
+
+    SharedLibrary(const SharedLibrary&) = delete;
+    void operator=(const SharedLibrary&) = delete;
+};
+};
+
+#endif  // SHARED_LIBRARY_H_