[sensors] Gyroscope sensor bindings implementation

third_party/WebKit/Source/modules/sensor/Gyroscope.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/Gyroscope.h"
+
+#include "bindings/core/v8/ScriptPromise.h"

[shalamov, 2016/11/16 14:38:20]

nit: ScriptPromise.h and ScriptPromiseResolver.h are not used

[Mikhail, 2016/11/17 13:47:46]

Done.

+#include "bindings/core/v8/ScriptPromiseResolver.h"
+#include "modules/sensor/GyroscopeReading.h"
+
+using device::mojom::blink::SensorType;
+
+namespace blink {
+
+Gyroscope* Gyroscope::create(ScriptState* scriptState,
+                             const SensorOptions& options,
+                             ExceptionState& exceptionState) {
+  return new Gyroscope(scriptState, options, exceptionState);
+}
+
+// static
+Gyroscope* Gyroscope::create(ScriptState* scriptState,
+                             ExceptionState& exceptionState) {
+  return create(scriptState, SensorOptions(), exceptionState);
+}
+
+Gyroscope::Gyroscope(ScriptState* scriptState,
+                     const SensorOptions& options,
+                     ExceptionState& exceptionState)
+    : Sensor(scriptState, options, exceptionState, SensorType::GYROSCOPE) {}
+
+GyroscopeReading* Gyroscope::reading() const {
+  return static_cast<GyroscopeReading*>(Sensor::reading());
+}
+
+std::unique_ptr<SensorReadingFactory> Gyroscope::createSensorReadingFactory() {
+  return std::unique_ptr<SensorReadingFactory>(
+      new SensorReadingFactoryImpl<GyroscopeReading>());

[Reilly Grant (use Gerrit), 2016/11/16 18:50:51]

As haraken@ suggested on the other review, use makeUnique.

[Mikhail, 2016/11/17 13:47:46]

Done.

+}
+
+DEFINE_TRACE(Gyroscope) {
+  Sensor::trace(visitor);
+}
+
+}  // namespace blink