WIP : Generic Sensor API implementation

device/sensors/android/java/src/org/chromium/device/sensors/GyroscopeSensorImpl.java

Index: device/sensors/android/java/src/org/chromium/device/sensors/GyroscopeSensorImpl.java
diff --git a/device/sensors/android/java/src/org/chromium/device/sensors/GyroscopeSensorImpl.java b/device/sensors/android/java/src/org/chromium/device/sensors/GyroscopeSensorImpl.java
new file mode 100644
index 0000000000000000000000000000000000000000..85bab5c5b13ba1fa08e964be179b088d9bb5c3ca
--- /dev/null
+++ b/device/sensors/android/java/src/org/chromium/device/sensors/GyroscopeSensorImpl.java
@@ -0,0 +1,43 @@
+// Copyright 2016 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+package org.chromium.device.sensors;
+
+import android.hardware.Sensor;
+import android.hardware.SensorEvent;
+import android.hardware.SensorManager;
+import android.os.Handler;
+
+import org.chromium.mojo.system.SharedBufferHandle;
+import org.chromium.mojom.device.sensors.SensorType;
+
+import java.nio.ByteBuffer;
+
+/**
+ * GyroscopeSensor implementation.
+ */
+public class GyroscopeSensorImpl extends SensorBase {
+    GyroscopeSensorImpl(SensorManager manager, Handler handler, SharedBufferHandle handle,
+            long size, long offset, SensorStateObserver observer)
+            throws SensorException {
+        super(Sensor.TYPE_GYROSCOPE, manager, handler, handle, offset, size, observer);
+    }
+
+    @Override
+    public int getType() {
+        return SensorType.GYROSCOPE;
+    }
+
+    @Override
+    protected void fillSensorReadingData(SensorEvent event, ByteBuffer buffer)
+            throws SensorException {
+        if(event.values.length < 3) throw new SensorException();
+        // X
+        buffer.putDouble(event.values[0]);
+        // Y
+        buffer.putDouble(event.values[1]);
+        // Z
+        buffer.putDouble(event.values[2]);
+    }
+}