[sensors]: Introduce the Generic Sensor API.

third_party/WebKit/Source/modules/sensor/SensorState.h

Index: third_party/WebKit/Source/modules/sensor/SensorState.h
diff --git a/third_party/WebKit/Source/modules/sensor/SensorState.h b/third_party/WebKit/Source/modules/sensor/SensorState.h
new file mode 100644
index 0000000000000000000000000000000000000000..970de6fcc445a8589be77480fde52355a9f1c242
--- /dev/null
+++ b/third_party/WebKit/Source/modules/sensor/SensorState.h
@@ -0,0 +1,20 @@
+// 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.
+
+#ifndef SensorState_h
+#define SensorState_h
+
+namespace blink {
+
+enum class SensorState {
+    Idle,
+    Activating,
+    Active,
+    Errored
+};
+
+} // namespace blink
+
+#endif // SensorState_h
+