diff --git a/compositor.cpp b/compositor.cpp
new file mode 100644
index 0000000..3f85dc7
--- /dev/null
+++ b/compositor.cpp
@@ -0,0 +1,35 @@
+/*
+ * 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.
+ */
+
+#include "compositor.h"
+
+#include <sstream>
+
+namespace android {
+
+Targeting::~Targeting() {
+}
+
+Composition::~Composition() {
+}
+
+Compositor::~Compositor() {
+}
+
+void Compositor::Dump(std::ostringstream */* out */) const {
+}
+
+}  // namespace android