Add |notify_client_on_reading_change| flag to sensor configuration

device/generic_sensor/sensor_impl.h

Index: device/generic_sensor/sensor_impl.h
diff --git a/device/generic_sensor/sensor_impl.h b/device/generic_sensor/sensor_impl.h
index 4a6ecc95e0faaff7590e15aba65c74ad9b26a0ea..9495f6116a2419ba68808de366c4bfd588c578b3 100644
--- a/device/generic_sensor/sensor_impl.h
+++ b/device/generic_sensor/sensor_impl.h
@@ -40,6 +40,10 @@ class SensorImpl final : public mojom::Sensor, public PlatformSensor::Client {
   scoped_refptr<PlatformSensor> sensor_;
   mojom::SensorClientPtr client_;
   bool suspended_;
+  // The number of configurations that have |notify_client_on_reading_change_|
+  // flag set to true. If there is at least one configuration that sets this
+  // flag to true, SensorClient::SensorReadingChanged() is called.

[timvolodine, 2017/06/09 12:39:09]

Is it possible to only notify the client with the configuration which set the
flag?

[timvolodine, 2017/06/09 12:40:42]

hmm scratch that, looks like there is only one client anyway..

+  int notify_client_on_reading_change_count_;
 
   DISALLOW_COPY_AND_ASSIGN(SensorImpl);
 };