Move dead submodules in-tree

Signed-off-by: swurl <swurl@swurl.xyz>

externals/oboe/samples/shared/IRestartable.h

@@ -0,0 +1,28 @@
+/*
+ * Copyright 2018 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 SAMPLES_IRESTARTABLE_H
+#define SAMPLES_IRESTARTABLE_H
+
+/**
+ * Represents an object which can be restarted. For example an audio engine which has one or more
+ * streams which can be restarted following a change in audio device configuration. For example,
+ * headphones being connected.
+ */
+class IRestartable {
+public:
+    virtual void restart() = 0;
+};
+#endif //SAMPLES_IRESTARTABLE_H