Create native version of Thermal Throttling API.

Create native thermal manager API of thermal mananger service.
Export libthermal NDK library.

Bug: 137151587
Bug: 136285293

Test: build, atest thermalmanager-test

Change-Id: I1ec7c746f7e814c701b306e06fe08c3641c39e88
diff --git a/include/android/Temperature.h b/include/android/Temperature.h
new file mode 100644
index 0000000..2e68ec4
--- /dev/null
+++ b/include/android/Temperature.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2020 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 ANDROID_OS_TEMPERATURE_H
+#define ANDROID_OS_TEMPERATURE_H
+
+#include <binder/Parcelable.h>
+#include <utils/RefBase.h>
+
+namespace android {
+namespace os {
+
+/**
+ * Temperature is a structure to encapsulate temperature status.
+ */
+struct Temperature : public android::Parcelable {
+    /** Temperature value */
+    float mValue;
+    /** A Temperature type from ThermalHAL */
+    int32_t mType;
+    /** Name of this Temperature */
+    String16 mName;
+    /** The level of the sensor is currently in throttling */
+    int32_t mStatus;
+
+    Temperature()
+        : mValue(0.0f),
+          mType(0),
+          mName(""),
+          mStatus(0) {
+    }
+
+    virtual status_t readFromParcel(const android::Parcel* parcel) override;
+    virtual status_t writeToParcel(android::Parcel* parcel) const override;
+};
+
+} // namespace os
+} // namespace android
+
+#endif /* ANDROID_OS_TEMPERATURE_H */