diff --git a/services/mediadrm/DrmSessionClientInterface.h b/services/mediadrm/DrmSessionClientInterface.h
new file mode 100644
index 0000000..17faf08
--- /dev/null
+++ b/services/mediadrm/DrmSessionClientInterface.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright (C) 2015 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 DRM_PROXY_INTERFACE_H_
+#define DRM_PROXY_INTERFACE_H_
+
+#include <utils/RefBase.h>
+#include <utils/Vector.h>
+
+namespace android {
+
+struct DrmSessionClientInterface : public RefBase {
+    virtual bool reclaimSession(const Vector<uint8_t>& sessionId) = 0;
+
+protected:
+    virtual ~DrmSessionClientInterface() {}
+};
+
+}  // namespace android
+
+#endif  // DRM_PROXY_INTERFACE_H_