[sensors]: Introduce the Generic Sensor API.

third_party/WebKit/Source/modules/sensor/SensorReading.cpp

+// 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.
+
+#include "modules/sensor/SensorReading.h"
+
+namespace blink {
+
+SensorReading::SensorReading()
+    : m_timeStamp(0.0)

[timvolodine, 2016/05/06 17:04:30]

hmm should we allow this? I guess this would correspond to 'nullable', but maybe
then should be -1 or something like that.

[riju_, 2016/05/12 14:12:46]

Making it -1 now.
Wider spec issue : https://github.com/w3c/sensors/issues/105

[timvolodine, 2016/05/17 17:44:39]

hmm, I think I would actually prefer it to be nullable..

[riju_, 2016/05/20 11:20:11]

Done.

+{
+}
+
+SensorReading::SensorReading(DOMHighResTimeStamp timeStamp)
+    : m_timeStamp(timeStamp)
+{
+}
+
+SensorReading::~SensorReading()
+{
+}
+
+DEFINE_TRACE(SensorReading)
+{
+}
+
+
+} // namespace blink